21029616

素因数分解:

$2^4\times 3^2\times {\mathrm{37}}^1\times {\mathrm{3947}}^1$

素因数の和:3998

約数の個数: 60

約数和(自身を含む): 60459672

約数和(自身を除く): 39430056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 37, 48, 72, 74, 111, 144, 148, 222, 296, 333, 444, 592, 666, 888, 1332, 1776, 2664, 3947, 5328, 7894, 11841, 15788, 23682, 31576, 35523, 47364, 63152, 71046, 94728, 142092, 146039, 189456, 284184, 292078, 438117, 568368, 584156, 876234, 1168312, 1314351, 1752468, 2336624, 2628702, 3504936, 5257404, 7009872, 10514808, 21029616]

約数ペア:

[(1, 21029616), (2, 10514808), (3, 7009872), (4, 5257404), (6, 3504936), (8, 2628702), (9, 2336624), (12, 1752468), (16, 1314351), (18, 1168312), (24, 876234), (36, 584156), (37, 568368), (48, 438117), (72, 292078), (74, 284184), (111, 189456), (144, 146039), (148, 142092), (222, 94728), (296, 71046), (333, 63152), (444, 47364), (592, 35523), (666, 31576), (888, 23682), (1332, 15788), (1776, 11841), (2664, 7894), (3947, 5328)]