20372115

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 33970176

約数和(自身を除く): 13598061

約数列:

[1, 3, 5, 15, 31, 93, 155, 193, 227, 465, 579, 681, 965, 1135, 2895, 3405, 5983, 7037, 17949, 21111, 29915, 35185, 43811, 89745, 105555, 131433, 219055, 657165, 1358141, 4074423, 6790705, 20372115]

約数ペア:

[(1, 20372115), (3, 6790705), (5, 4074423), (15, 1358141), (31, 657165), (93, 219055), (155, 131433), (193, 105555), (227, 89745), (465, 43811), (579, 35185), (681, 29915), (965, 21111), (1135, 17949), (2895, 7037), (3405, 5983)]