20403724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 40755456

約数和(自身を除く): 20351732

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 83, 148, 151, 166, 302, 332, 407, 604, 814, 913, 1628, 1661, 1826, 3071, 3322, 3652, 5587, 6142, 6644, 11174, 12284, 12533, 22348, 25066, 33781, 50132, 61457, 67562, 122914, 135124, 137863, 245828, 275726, 463721, 551452, 927442, 1854884, 5100931, 10201862, 20403724]

約数ペア:

[(1, 20403724), (2, 10201862), (4, 5100931), (11, 1854884), (22, 927442), (37, 551452), (44, 463721), (74, 275726), (83, 245828), (148, 137863), (151, 135124), (166, 122914), (302, 67562), (332, 61457), (407, 50132), (604, 33781), (814, 25066), (913, 22348), (1628, 12533), (1661, 12284), (1826, 11174), (3071, 6644), (3322, 6142), (3652, 5587)]