20816422

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:396

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 14642138

約数列:

[1, 2, 11, 22, 37, 74, 107, 214, 239, 407, 478, 814, 1177, 2354, 2629, 3959, 5258, 7918, 8843, 17686, 25573, 43549, 51146, 87098, 97273, 194546, 281303, 562606, 946201, 1892402, 10408211, 20816422]

約数ペア:

[(1, 20816422), (2, 10408211), (11, 1892402), (22, 946201), (37, 562606), (74, 281303), (107, 194546), (214, 97273), (239, 87098), (407, 51146), (478, 43549), (814, 25573), (1177, 17686), (2354, 8843), (2629, 7918), (3959, 5258)]