21563684

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{1361}}^1$

素因数の和:1615

約数の個数: 24

約数和(自身を含む): 40157208

約数和(自身を除く): 18593524

約数列:

[1, 2, 4, 17, 34, 68, 233, 466, 932, 1361, 2722, 3961, 5444, 7922, 15844, 23137, 46274, 92548, 317113, 634226, 1268452, 5390921, 10781842, 21563684]

約数ペア:

[(1, 21563684), (2, 10781842), (4, 5390921), (17, 1268452), (34, 634226), (68, 317113), (233, 92548), (466, 46274), (932, 23137), (1361, 15844), (2722, 7922), (3961, 5444)]