21382140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:451

約数の個数: 96

約数和(自身を含む): 65479680

約数和(自身を除く): 44097540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 79, 130, 156, 158, 195, 237, 260, 316, 347, 390, 395, 474, 694, 780, 790, 948, 1027, 1041, 1185, 1388, 1580, 1735, 2054, 2082, 2370, 3081, 3470, 4108, 4164, 4511, 4740, 5135, 5205, 6162, 6940, 9022, 10270, 10410, 12324, 13533, 15405, 18044, 20540, 20820, 22555, 27066, 27413, 30810, 45110, 54132, 54826, 61620, 67665, 82239, 90220, 109652, 135330, 137065, 164478, 270660, 274130, 328956, 356369, 411195, 548260, 712738, 822390, 1069107, 1425476, 1644780, 1781845, 2138214, 3563690, 4276428, 5345535, 7127380, 10691070, 21382140]

約数ペア:

[(1, 21382140), (2, 10691070), (3, 7127380), (4, 5345535), (5, 4276428), (6, 3563690), (10, 2138214), (12, 1781845), (13, 1644780), (15, 1425476), (20, 1069107), (26, 822390), (30, 712738), (39, 548260), (52, 411195), (60, 356369), (65, 328956), (78, 274130), (79, 270660), (130, 164478), (156, 137065), (158, 135330), (195, 109652), (237, 90220), (260, 82239), (316, 67665), (347, 61620), (390, 54826), (395, 54132), (474, 45110), (694, 30810), (780, 27413), (790, 27066), (948, 22555), (1027, 20820), (1041, 20540), (1185, 18044), (1388, 15405), (1580, 13533), (1735, 12324), (2054, 10410), (2082, 10270), (2370, 9022), (3081, 6940), (3470, 6162), (4108, 5205), (4164, 5135), (4511, 4740)]