18303815

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 23872320

約数和(自身を除く): 5568505

約数列:

[1, 5, 17, 53, 85, 239, 265, 289, 901, 1195, 1445, 4063, 4505, 12667, 15317, 20315, 63335, 69071, 76585, 215339, 345355, 1076695, 3660763, 18303815]

約数ペア:

[(1, 18303815), (5, 3660763), (17, 1076695), (53, 345355), (85, 215339), (239, 76585), (265, 69071), (289, 63335), (901, 20315), (1195, 15317), (1445, 12667), (4063, 4505)]