21561628

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{6203}}^1$

素因数の和:6297

約数の個数: 24

約数和(自身を含む): 41690880

約数和(自身を除く): 20129252

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 6203, 12406, 24812, 68233, 136466, 272932, 490037, 980074, 1960148, 5390407, 10780814, 21561628]

約数ペア:

[(1, 21561628), (2, 10780814), (4, 5390407), (11, 1960148), (22, 980074), (44, 490037), (79, 272932), (158, 136466), (316, 68233), (869, 24812), (1738, 12406), (3476, 6203)]