21714560

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:194

約数の個数: 128

約数和(自身を含む): 61395840

約数和(自身を除く): 39681280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 128, 131, 140, 148, 160, 185, 224, 259, 262, 280, 296, 320, 370, 448, 518, 524, 560, 592, 640, 655, 740, 896, 917, 1036, 1048, 1120, 1184, 1295, 1310, 1480, 1834, 2072, 2096, 2240, 2368, 2590, 2620, 2960, 3668, 4144, 4192, 4480, 4585, 4736, 4847, 5180, 5240, 5920, 7336, 8288, 8384, 9170, 9694, 10360, 10480, 11840, 14672, 16576, 16768, 18340, 19388, 20720, 20960, 23680, 24235, 29344, 33152, 33929, 36680, 38776, 41440, 41920, 48470, 58688, 67858, 73360, 77552, 82880, 83840, 96940, 117376, 135716, 146720, 155104, 165760, 169645, 193880, 271432, 293440, 310208, 339290, 387760, 542864, 586880, 620416, 678580, 775520, 1085728, 1357160, 1551040, 2171456, 2714320, 3102080, 4342912, 5428640, 10857280, 21714560]

約数ペア:

[(1, 21714560), (2, 10857280), (4, 5428640), (5, 4342912), (7, 3102080), (8, 2714320), (10, 2171456), (14, 1551040), (16, 1357160), (20, 1085728), (28, 775520), (32, 678580), (35, 620416), (37, 586880), (40, 542864), (56, 387760), (64, 339290), (70, 310208), (74, 293440), (80, 271432), (112, 193880), (128, 169645), (131, 165760), (140, 155104), (148, 146720), (160, 135716), (185, 117376), (224, 96940), (259, 83840), (262, 82880), (280, 77552), (296, 73360), (320, 67858), (370, 58688), (448, 48470), (518, 41920), (524, 41440), (560, 38776), (592, 36680), (640, 33929), (655, 33152), (740, 29344), (896, 24235), (917, 23680), (1036, 20960), (1048, 20720), (1120, 19388), (1184, 18340), (1295, 16768), (1310, 16576), (1480, 14672), (1834, 11840), (2072, 10480), (2096, 10360), (2240, 9694), (2368, 9170), (2590, 8384), (2620, 8288), (2960, 7336), (3668, 5920), (4144, 5240), (4192, 5180), (4480, 4847), (4585, 4736)]