20313915

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^2$

素因数の和:367

約数の個数: 24

約数和(自身を含む): 33258288

約数和(自身を除く): 12944373

約数列:

[1, 3, 5, 15, 61, 149, 183, 305, 447, 745, 915, 2235, 9089, 22201, 27267, 45445, 66603, 111005, 136335, 333015, 1354261, 4062783, 6771305, 20313915]

約数ペア:

[(1, 20313915), (3, 6771305), (5, 4062783), (15, 1354261), (61, 333015), (149, 136335), (183, 111005), (305, 66603), (447, 45445), (745, 27267), (915, 22201), (2235, 9089)]