21268636

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1097}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 38552976

約数和(自身を除く): 17284340

約数列:

[1, 2, 4, 37, 74, 131, 148, 262, 524, 1097, 2194, 4388, 4847, 9694, 19388, 40589, 81178, 143707, 162356, 287414, 574828, 5317159, 10634318, 21268636]

約数ペア:

[(1, 21268636), (2, 10634318), (4, 5317159), (37, 574828), (74, 287414), (131, 162356), (148, 143707), (262, 81178), (524, 40589), (1097, 19388), (2194, 9694), (4388, 4847)]