21815536

素因数分解:

$2^4\times {\mathrm{659}}^1\times {\mathrm{2069}}^1$

素因数の和:2736

約数の個数: 20

約数和(自身を含む): 42352200

約数和(自身を除く): 20536664

約数列:

[1, 2, 4, 8, 16, 659, 1318, 2069, 2636, 4138, 5272, 8276, 10544, 16552, 33104, 1363471, 2726942, 5453884, 10907768, 21815536]

約数ペア:

[(1, 21815536), (2, 10907768), (4, 5453884), (8, 2726942), (16, 1363471), (659, 33104), (1318, 16552), (2069, 10544), (2636, 8276), (4138, 5272)]