21031946

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 35154000

約数和(自身を除く): 14122054

約数列:

[1, 2, 13, 26, 61, 89, 122, 149, 178, 298, 793, 1157, 1586, 1937, 2314, 3874, 5429, 9089, 10858, 13261, 18178, 26522, 70577, 118157, 141154, 172393, 236314, 344786, 808921, 1617842, 10515973, 21031946]

約数ペア:

[(1, 21031946), (2, 10515973), (13, 1617842), (26, 808921), (61, 344786), (89, 236314), (122, 172393), (149, 141154), (178, 118157), (298, 70577), (793, 26522), (1157, 18178), (1586, 13261), (1937, 10858), (2314, 9089), (3874, 5429)]