20615516

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{2069}}^1$

素因数の和:2173

約数の個数: 24

約数和(自身を含む): 37558080

約数和(自身を除く): 16942564

約数列:

[1, 2, 4, 47, 53, 94, 106, 188, 212, 2069, 2491, 4138, 4982, 8276, 9964, 97243, 109657, 194486, 219314, 388972, 438628, 5153879, 10307758, 20615516]

約数ペア:

[(1, 20615516), (2, 10307758), (4, 5153879), (47, 438628), (53, 388972), (94, 219314), (106, 194486), (188, 109657), (212, 97243), (2069, 9964), (2491, 8276), (4138, 4982)]