21513360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:337

約数の個数: 160

約数和(自身を含む): 75530880

約数和(自身を除く): 54017520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 29, 30, 33, 40, 44, 48, 55, 58, 60, 66, 80, 87, 88, 110, 116, 120, 132, 145, 165, 174, 176, 220, 232, 240, 264, 281, 290, 319, 330, 348, 435, 440, 464, 528, 562, 580, 638, 660, 696, 843, 870, 880, 957, 1124, 1160, 1276, 1320, 1392, 1405, 1595, 1686, 1740, 1914, 2248, 2320, 2552, 2640, 2810, 3091, 3190, 3372, 3480, 3828, 4215, 4496, 4785, 5104, 5620, 6182, 6380, 6744, 6960, 7656, 8149, 8430, 9273, 9570, 11240, 12364, 12760, 13488, 15312, 15455, 16298, 16860, 18546, 19140, 22480, 24447, 24728, 25520, 30910, 32596, 33720, 37092, 38280, 40745, 46365, 48894, 49456, 61820, 65192, 67440, 74184, 76560, 81490, 89639, 92730, 97788, 122235, 123640, 130384, 148368, 162980, 179278, 185460, 195576, 244470, 247280, 268917, 325960, 358556, 370920, 391152, 448195, 488940, 537834, 651920, 717112, 741840, 896390, 977880, 1075668, 1344585, 1434224, 1792780, 1955760, 2151336, 2689170, 3585560, 4302672, 5378340, 7171120, 10756680, 21513360]

約数ペア:

[(1, 21513360), (2, 10756680), (3, 7171120), (4, 5378340), (5, 4302672), (6, 3585560), (8, 2689170), (10, 2151336), (11, 1955760), (12, 1792780), (15, 1434224), (16, 1344585), (20, 1075668), (22, 977880), (24, 896390), (29, 741840), (30, 717112), (33, 651920), (40, 537834), (44, 488940), (48, 448195), (55, 391152), (58, 370920), (60, 358556), (66, 325960), (80, 268917), (87, 247280), (88, 244470), (110, 195576), (116, 185460), (120, 179278), (132, 162980), (145, 148368), (165, 130384), (174, 123640), (176, 122235), (220, 97788), (232, 92730), (240, 89639), (264, 81490), (281, 76560), (290, 74184), (319, 67440), (330, 65192), (348, 61820), (435, 49456), (440, 48894), (464, 46365), (528, 40745), (562, 38280), (580, 37092), (638, 33720), (660, 32596), (696, 30910), (843, 25520), (870, 24728), (880, 24447), (957, 22480), (1124, 19140), (1160, 18546), (1276, 16860), (1320, 16298), (1392, 15455), (1405, 15312), (1595, 13488), (1686, 12760), (1740, 12364), (1914, 11240), (2248, 9570), (2320, 9273), (2552, 8430), (2640, 8149), (2810, 7656), (3091, 6960), (3190, 6744), (3372, 6380), (3480, 6182), (3828, 5620), (4215, 5104), (4496, 4785)]