21126710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1289}}^1$

素因数の和:1456

約数の個数: 32

約数和(自身を含む): 41796000

約数和(自身を除く): 20669290

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 149, 298, 745, 1289, 1490, 1639, 2578, 3278, 6445, 8195, 12890, 14179, 16390, 28358, 70895, 141790, 192061, 384122, 960305, 1920610, 2112671, 4225342, 10563355, 21126710]

約数ペア:

[(1, 21126710), (2, 10563355), (5, 4225342), (10, 2112671), (11, 1920610), (22, 960305), (55, 384122), (110, 192061), (149, 141790), (298, 70895), (745, 28358), (1289, 16390), (1490, 14179), (1639, 12890), (2578, 8195), (3278, 6445)]