13647921

素因数分解:

$3^1\times 7^2\times {\mathrm{227}}^1\times {\mathrm{409}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 21313440

約数和(自身を除く): 7665519

約数列:

[1, 3, 7, 21, 49, 147, 227, 409, 681, 1227, 1589, 2863, 4767, 8589, 11123, 20041, 33369, 60123, 92843, 278529, 649901, 1949703, 4549307, 13647921]

約数ペア:

[(1, 13647921), (3, 4549307), (7, 1949703), (21, 649901), (49, 278529), (147, 92843), (227, 60123), (409, 33369), (681, 20041), (1227, 11123), (1589, 8589), (2863, 4767)]