28294209

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2579}}^1$

素因数の和:2661

約数の個数: 24

約数和(自身を含む): 43467840

約数和(自身を除く): 15173631

約数列:

[1, 3, 9, 23, 53, 69, 159, 207, 477, 1219, 2579, 3657, 7737, 10971, 23211, 59317, 136687, 177951, 410061, 533853, 1230183, 3143801, 9431403, 28294209]

約数ペア:

[(1, 28294209), (3, 9431403), (9, 3143801), (23, 1230183), (53, 533853), (69, 410061), (159, 177951), (207, 136687), (477, 59317), (1219, 23211), (2579, 10971), (3657, 7737)]