21615572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4507}}^1$

素因数の和:4631

約数の個数: 24

約数和(自身を含む): 41653920

約数和(自身を除く): 20038348

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4507, 4796, 9014, 18028, 49577, 99154, 198308, 491263, 982526, 1965052, 5403893, 10807786, 21615572]

約数ペア:

[(1, 21615572), (2, 10807786), (4, 5403893), (11, 1965052), (22, 982526), (44, 491263), (109, 198308), (218, 99154), (436, 49577), (1199, 18028), (2398, 9014), (4507, 4796)]