28531215

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21863}}^1$

素因数の和:21903

約数の個数: 24

約数和(自身を含む): 51161760

約数和(自身を除く): 22630545

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 21863, 65589, 109315, 196767, 327945, 634027, 983835, 1902081, 3170135, 5706243, 9510405, 28531215]

約数ペア:

[(1, 28531215), (3, 9510405), (5, 5706243), (9, 3170135), (15, 1902081), (29, 983835), (45, 634027), (87, 327945), (145, 196767), (261, 109315), (435, 65589), (1305, 21863)]