21446880

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:529

約数の個数: 192

約数和(自身を含む): 83317248

約数和(自身を除く): 61870368

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 195, 208, 210, 224, 240, 260, 273, 280, 312, 336, 364, 390, 416, 420, 455, 480, 491, 520, 546, 560, 624, 672, 728, 780, 840, 910, 982, 1040, 1092, 1120, 1248, 1365, 1456, 1473, 1560, 1680, 1820, 1964, 2080, 2184, 2455, 2730, 2912, 2946, 3120, 3360, 3437, 3640, 3928, 4368, 4910, 5460, 5892, 6240, 6383, 6874, 7280, 7365, 7856, 8736, 9820, 10311, 10920, 11784, 12766, 13748, 14560, 14730, 15712, 17185, 19149, 19640, 20622, 21840, 23568, 25532, 27496, 29460, 31915, 34370, 38298, 39280, 41244, 43680, 44681, 47136, 51064, 51555, 54992, 58920, 63830, 68740, 76596, 78560, 82488, 89362, 95745, 102128, 103110, 109984, 117840, 127660, 134043, 137480, 153192, 164976, 178724, 191490, 204256, 206220, 223405, 235680, 255320, 268086, 274960, 306384, 329952, 357448, 382980, 412440, 446810, 510640, 536172, 549920, 612768, 670215, 714896, 765960, 824880, 893620, 1021280, 1072344, 1340430, 1429792, 1531920, 1649760, 1787240, 2144688, 2680860, 3063840, 3574480, 4289376, 5361720, 7148960, 10723440, 21446880]

約数ペア:

[(1, 21446880), (2, 10723440), (3, 7148960), (4, 5361720), (5, 4289376), (6, 3574480), (7, 3063840), (8, 2680860), (10, 2144688), (12, 1787240), (13, 1649760), (14, 1531920), (15, 1429792), (16, 1340430), (20, 1072344), (21, 1021280), (24, 893620), (26, 824880), (28, 765960), (30, 714896), (32, 670215), (35, 612768), (39, 549920), (40, 536172), (42, 510640), (48, 446810), (52, 412440), (56, 382980), (60, 357448), (65, 329952), (70, 306384), (78, 274960), (80, 268086), (84, 255320), (91, 235680), (96, 223405), (104, 206220), (105, 204256), (112, 191490), (120, 178724), (130, 164976), (140, 153192), (156, 137480), (160, 134043), (168, 127660), (182, 117840), (195, 109984), (208, 103110), (210, 102128), (224, 95745), (240, 89362), (260, 82488), (273, 78560), (280, 76596), (312, 68740), (336, 63830), (364, 58920), (390, 54992), (416, 51555), (420, 51064), (455, 47136), (480, 44681), (491, 43680), (520, 41244), (546, 39280), (560, 38298), (624, 34370), (672, 31915), (728, 29460), (780, 27496), (840, 25532), (910, 23568), (982, 21840), (1040, 20622), (1092, 19640), (1120, 19149), (1248, 17185), (1365, 15712), (1456, 14730), (1473, 14560), (1560, 13748), (1680, 12766), (1820, 11784), (1964, 10920), (2080, 10311), (2184, 9820), (2455, 8736), (2730, 7856), (2912, 7365), (2946, 7280), (3120, 6874), (3360, 6383), (3437, 6240), (3640, 5892), (3928, 5460), (4368, 4910)]