18477615

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 33045408

約数和(自身を除く): 14567793

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 169, 185, 195, 197, 481, 507, 555, 591, 845, 985, 1443, 2405, 2535, 2561, 2955, 6253, 7215, 7289, 7683, 12805, 18759, 21867, 31265, 33293, 36445, 38415, 93795, 94757, 99879, 109335, 166465, 284271, 473785, 499395, 1231841, 1421355, 3695523, 6159205, 18477615]

約数ペア:

[(1, 18477615), (3, 6159205), (5, 3695523), (13, 1421355), (15, 1231841), (37, 499395), (39, 473785), (65, 284271), (111, 166465), (169, 109335), (185, 99879), (195, 94757), (197, 93795), (481, 38415), (507, 36445), (555, 33293), (591, 31265), (845, 21867), (985, 18759), (1443, 12805), (2405, 7683), (2535, 7289), (2561, 7215), (2955, 6253)]