21193900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 60371136

約数和(自身を除く): 39177236

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 25, 26, 28, 34, 35, 50, 52, 65, 68, 70, 85, 91, 100, 119, 130, 137, 140, 170, 175, 182, 221, 238, 260, 274, 325, 340, 350, 364, 425, 442, 455, 476, 548, 595, 650, 685, 700, 850, 884, 910, 959, 1105, 1190, 1300, 1370, 1547, 1700, 1781, 1820, 1918, 2210, 2275, 2329, 2380, 2740, 2975, 3094, 3425, 3562, 3836, 4420, 4550, 4658, 4795, 5525, 5950, 6188, 6850, 7124, 7735, 8905, 9100, 9316, 9590, 11050, 11645, 11900, 12467, 13700, 15470, 16303, 17810, 19180, 22100, 23290, 23975, 24934, 30277, 30940, 32606, 35620, 38675, 44525, 46580, 47950, 49868, 58225, 60554, 62335, 65212, 77350, 81515, 89050, 95900, 116450, 121108, 124670, 151385, 154700, 163030, 178100, 211939, 232900, 249340, 302770, 311675, 326060, 407575, 423878, 605540, 623350, 756925, 815150, 847756, 1059695, 1246700, 1513850, 1630300, 2119390, 3027700, 4238780, 5298475, 10596950, 21193900]

約数ペア:

[(1, 21193900), (2, 10596950), (4, 5298475), (5, 4238780), (7, 3027700), (10, 2119390), (13, 1630300), (14, 1513850), (17, 1246700), (20, 1059695), (25, 847756), (26, 815150), (28, 756925), (34, 623350), (35, 605540), (50, 423878), (52, 407575), (65, 326060), (68, 311675), (70, 302770), (85, 249340), (91, 232900), (100, 211939), (119, 178100), (130, 163030), (137, 154700), (140, 151385), (170, 124670), (175, 121108), (182, 116450), (221, 95900), (238, 89050), (260, 81515), (274, 77350), (325, 65212), (340, 62335), (350, 60554), (364, 58225), (425, 49868), (442, 47950), (455, 46580), (476, 44525), (548, 38675), (595, 35620), (650, 32606), (685, 30940), (700, 30277), (850, 24934), (884, 23975), (910, 23290), (959, 22100), (1105, 19180), (1190, 17810), (1300, 16303), (1370, 15470), (1547, 13700), (1700, 12467), (1781, 11900), (1820, 11645), (1918, 11050), (2210, 9590), (2275, 9316), (2329, 9100), (2380, 8905), (2740, 7735), (2975, 7124), (3094, 6850), (3425, 6188), (3562, 5950), (3836, 5525), (4420, 4795), (4550, 4658)]