21612188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{5261}}^1$

素因数の和:5357

約数の個数: 24

約数和(自身を含む): 41254080

約数和(自身を除く): 19641892

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 5261, 10522, 21044, 68393, 136786, 273572, 415619, 831238, 1662476, 5403047, 10806094, 21612188]

約数ペア:

[(1, 21612188), (2, 10806094), (4, 5403047), (13, 1662476), (26, 831238), (52, 415619), (79, 273572), (158, 136786), (316, 68393), (1027, 21044), (2054, 10522), (4108, 5261)]