21249170

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1559}}^1$

素因数の和:1642

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19186030

約数列:

[1, 2, 5, 10, 29, 47, 58, 94, 145, 235, 290, 470, 1363, 1559, 2726, 3118, 6815, 7795, 13630, 15590, 45211, 73273, 90422, 146546, 226055, 366365, 452110, 732730, 2124917, 4249834, 10624585, 21249170]

約数ペア:

[(1, 21249170), (2, 10624585), (5, 4249834), (10, 2124917), (29, 732730), (47, 452110), (58, 366365), (94, 226055), (145, 146546), (235, 90422), (290, 73273), (470, 45211), (1363, 15590), (1559, 13630), (2726, 7795), (3118, 6815)]