21780374

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{607}}^1$

素因数の和:860

約数の個数: 32

約数和(自身を含む): 40974336

約数和(自身を除く): 19193962

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 233, 466, 607, 1214, 1631, 2563, 3262, 4249, 5126, 6677, 8498, 13354, 17941, 35882, 46739, 93478, 141431, 282862, 990017, 1555741, 1980034, 3111482, 10890187, 21780374]

約数ペア:

[(1, 21780374), (2, 10890187), (7, 3111482), (11, 1980034), (14, 1555741), (22, 990017), (77, 282862), (154, 141431), (233, 93478), (466, 46739), (607, 35882), (1214, 17941), (1631, 13354), (2563, 8498), (3262, 6677), (4249, 5126)]