28047579

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 44169216

約数和(自身を除く): 16121637

約数列:

[1, 3, 7, 21, 47, 141, 157, 181, 329, 471, 543, 987, 1099, 1267, 3297, 3801, 7379, 8507, 22137, 25521, 28417, 51653, 59549, 85251, 154959, 178647, 198919, 596757, 1335599, 4006797, 9349193, 28047579]

約数ペア:

[(1, 28047579), (3, 9349193), (7, 4006797), (21, 1335599), (47, 596757), (141, 198919), (157, 178647), (181, 154959), (329, 85251), (471, 59549), (543, 51653), (987, 28417), (1099, 25521), (1267, 22137), (3297, 8507), (3801, 7379)]