21551495

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1249}}^1$

素因数の和:1307

約数の個数: 32

約数和(自身を含む): 32400000

約数和(自身を除く): 10848505

約数列:

[1, 5, 7, 17, 29, 35, 85, 119, 145, 203, 493, 595, 1015, 1249, 2465, 3451, 6245, 8743, 17255, 21233, 36221, 43715, 106165, 148631, 181105, 253547, 615757, 743155, 1267735, 3078785, 4310299, 21551495]

約数ペア:

[(1, 21551495), (5, 4310299), (7, 3078785), (17, 1267735), (29, 743155), (35, 615757), (85, 253547), (119, 181105), (145, 148631), (203, 106165), (493, 43715), (595, 36221), (1015, 21233), (1249, 17255), (2465, 8743), (3451, 6245)]