28155491

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 8616349

約数列:

[1, 7, 13, 29, 47, 91, 203, 227, 329, 377, 611, 1363, 1589, 2639, 2951, 4277, 6583, 9541, 10669, 17719, 20657, 46081, 74683, 85579, 124033, 138697, 309401, 599053, 970879, 2165807, 4022213, 28155491]

約数ペア:

[(1, 28155491), (7, 4022213), (13, 2165807), (29, 970879), (47, 599053), (91, 309401), (203, 138697), (227, 124033), (329, 85579), (377, 74683), (611, 46081), (1363, 20657), (1589, 17719), (2639, 10669), (2951, 9541), (4277, 6583)]