28211895

素因数分解:

$3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1699}}^1$

素因数の和:1757

約数の個数: 40

約数和(自身を含む): 51836400

約数和(自身を除く): 23624505

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 81, 123, 135, 205, 369, 405, 615, 1107, 1699, 1845, 3321, 5097, 5535, 8495, 15291, 16605, 25485, 45873, 69659, 76455, 137619, 208977, 229365, 348295, 626931, 688095, 1044885, 1880793, 3134655, 5642379, 9403965, 28211895]

約数ペア:

[(1, 28211895), (3, 9403965), (5, 5642379), (9, 3134655), (15, 1880793), (27, 1044885), (41, 688095), (45, 626931), (81, 348295), (123, 229365), (135, 208977), (205, 137619), (369, 76455), (405, 69659), (615, 45873), (1107, 25485), (1699, 16605), (1845, 15291), (3321, 8495), (5097, 5535)]