21490111515

素因数分解:

$3^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1201}}^1\times {\mathrm{1861}}^1$

素因数の和:3711

約数の個数: 32

約数和(自身を含む): 34485014592

約数和(自身を除く): 12994903077

約数列:

[1, 3, 5, 15, 641, 1201, 1861, 1923, 3205, 3603, 5583, 6005, 9305, 9615, 18015, 27915, 769841, 1192901, 2235061, 2309523, 3578703, 3849205, 5964505, 6705183, 11175305, 11547615, 17893515, 33525915, 1432674101, 4298022303, 7163370505, 21490111515]

約数ペア:

[(1, 21490111515), (3, 7163370505), (5, 4298022303), (15, 1432674101), (641, 33525915), (1201, 17893515), (1861, 11547615), (1923, 11175305), (3205, 6705183), (3603, 5964505), (5583, 3849205), (6005, 3578703), (9305, 2309523), (9615, 2235061), (18015, 1192901), (27915, 769841)]