20947644

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9539}}^1$

素因数の和:9610

約数の個数: 36

約数和(自身を含む): 53824680

約数和(自身を除く): 32877036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9539, 19078, 28617, 38156, 57234, 85851, 114468, 171702, 343404, 581879, 1163758, 1745637, 2327516, 3491274, 5236911, 6982548, 10473822, 20947644]

約数ペア:

[(1, 20947644), (2, 10473822), (3, 6982548), (4, 5236911), (6, 3491274), (9, 2327516), (12, 1745637), (18, 1163758), (36, 581879), (61, 343404), (122, 171702), (183, 114468), (244, 85851), (366, 57234), (549, 38156), (732, 28617), (1098, 19078), (2196, 9539)]