21970940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35437}}^1$

素因数の和:35477

約数の個数: 24

約数和(自身を含む): 47628672

約数和(自身を除く): 25657732

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 35437, 70874, 141748, 177185, 354370, 708740, 1098547, 2197094, 4394188, 5492735, 10985470, 21970940]

約数ペア:

[(1, 21970940), (2, 10985470), (4, 5492735), (5, 4394188), (10, 2197094), (20, 1098547), (31, 708740), (62, 354370), (124, 177185), (155, 141748), (310, 70874), (620, 35437)]