21028370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1283}}^1$

素因数の和:1450

約数の個数: 32

約数和(自身を含む): 41601600

約数和(自身を除く): 20573230

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 149, 298, 745, 1283, 1490, 1639, 2566, 3278, 6415, 8195, 12830, 14113, 16390, 28226, 70565, 141130, 191167, 382334, 955835, 1911670, 2102837, 4205674, 10514185, 21028370]

約数ペア:

[(1, 21028370), (2, 10514185), (5, 4205674), (10, 2102837), (11, 1911670), (22, 955835), (55, 382334), (110, 191167), (149, 141130), (298, 70565), (745, 28226), (1283, 16390), (1490, 14113), (1639, 12830), (2566, 8195), (3278, 6415)]