20395416

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{19763}}^1$

素因数の和:19815

約数の個数: 32

約数和(自身を含む): 52176960

約数和(自身を除く): 31781544

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 19763, 39526, 59289, 79052, 118578, 158104, 237156, 474312, 849809, 1699618, 2549427, 3399236, 5098854, 6798472, 10197708, 20395416]

約数ペア:

[(1, 20395416), (2, 10197708), (3, 6798472), (4, 5098854), (6, 3399236), (8, 2549427), (12, 1699618), (24, 849809), (43, 474312), (86, 237156), (129, 158104), (172, 118578), (258, 79052), (344, 59289), (516, 39526), (1032, 19763)]