20997482

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2441}}^1$

素因数の和:2494

約数の個数: 32

約数和(自身を含む): 37977984

約数和(自身を除く): 16980502

約数列:

[1, 2, 11, 17, 22, 23, 34, 46, 187, 253, 374, 391, 506, 782, 2441, 4301, 4882, 8602, 26851, 41497, 53702, 56143, 82994, 112286, 456467, 617573, 912934, 954431, 1235146, 1908862, 10498741, 20997482]

約数ペア:

[(1, 20997482), (2, 10498741), (11, 1908862), (17, 1235146), (22, 954431), (23, 912934), (34, 617573), (46, 456467), (187, 112286), (253, 82994), (374, 56143), (391, 53702), (506, 41497), (782, 26851), (2441, 8602), (4301, 4882)]