19684390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1201}}^1$

素因数の和:1368

約数の個数: 32

約数和(自身を含む): 38944800

約数和(自身を除く): 19260410

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 149, 298, 745, 1201, 1490, 1639, 2402, 3278, 6005, 8195, 12010, 13211, 16390, 26422, 66055, 132110, 178949, 357898, 894745, 1789490, 1968439, 3936878, 9842195, 19684390]

約数ペア:

[(1, 19684390), (2, 9842195), (5, 3936878), (10, 1968439), (11, 1789490), (22, 894745), (55, 357898), (110, 178949), (149, 132110), (298, 66055), (745, 26422), (1201, 16390), (1490, 13211), (1639, 12010), (2402, 8195), (3278, 6005)]