21472305

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{757}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 36092928

約数和(自身を除く): 14620623

約数列:

[1, 3, 5, 15, 31, 61, 93, 155, 183, 305, 465, 757, 915, 1891, 2271, 3785, 5673, 9455, 11355, 23467, 28365, 46177, 70401, 117335, 138531, 230885, 352005, 692655, 1431487, 4294461, 7157435, 21472305]

約数ペア:

[(1, 21472305), (3, 7157435), (5, 4294461), (15, 1431487), (31, 692655), (61, 352005), (93, 230885), (155, 138531), (183, 117335), (305, 70401), (465, 46177), (757, 28365), (915, 23467), (1891, 11355), (2271, 9455), (3785, 5673)]