201521505

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{5087}}^1$

素因数の和:5253

約数の個数: 32

約数和(自身を含む): 341913600

約数和(自身を除く): 140392095

約数列:

[1, 3, 5, 15, 19, 57, 95, 139, 285, 417, 695, 2085, 2641, 5087, 7923, 13205, 15261, 25435, 39615, 76305, 96653, 289959, 483265, 707093, 1449795, 2121279, 3535465, 10606395, 13434767, 40304301, 67173835, 201521505]

約数ペア:

[(1, 201521505), (3, 67173835), (5, 40304301), (15, 13434767), (19, 10606395), (57, 3535465), (95, 2121279), (139, 1449795), (285, 707093), (417, 483265), (695, 289959), (2085, 96653), (2641, 76305), (5087, 39615), (7923, 25435), (13205, 15261)]