21000950270

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{839}}^1\times {\mathrm{11863}}^1$

素因数の和:12920

約数の個数: 32

約数和(自身を含む): 38029340160

約数和(自身を除く): 17028389890

約数列:

[1, 2, 5, 10, 211, 422, 839, 1055, 1678, 2110, 4195, 8390, 11863, 23726, 59315, 118630, 177029, 354058, 885145, 1770290, 2503093, 5006186, 9953057, 12515465, 19906114, 25030930, 49765285, 99530570, 2100095027, 4200190054, 10500475135, 21000950270]

約数ペア:

[(1, 21000950270), (2, 10500475135), (5, 4200190054), (10, 2100095027), (211, 99530570), (422, 49765285), (839, 25030930), (1055, 19906114), (1678, 12515465), (2110, 9953057), (4195, 5006186), (8390, 2503093), (11863, 1770290), (23726, 885145), (59315, 354058), (118630, 177029)]