21343780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{26029}}^1$

素因数の和:26079

約数の個数: 24

約数和(自身を含む): 45916920

約数和(自身を除く): 24573140

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 26029, 52058, 104116, 130145, 260290, 520580, 1067189, 2134378, 4268756, 5335945, 10671890, 21343780]

約数ペア:

[(1, 21343780), (2, 10671890), (4, 5335945), (5, 4268756), (10, 2134378), (20, 1067189), (41, 520580), (82, 260290), (164, 130145), (205, 104116), (410, 52058), (820, 26029)]