388446513

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{3169}}^1$

素因数の和:3641

約数の個数: 32

約数和(自身を含む): 639072000

約数和(自身を除く): 250625487

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 449, 1347, 3143, 3169, 5837, 9429, 9507, 17511, 22183, 40859, 41197, 66549, 122577, 123591, 288379, 865137, 1422881, 4268643, 9960167, 18497453, 29880501, 55492359, 129482171, 388446513]

約数ペア:

[(1, 388446513), (3, 129482171), (7, 55492359), (13, 29880501), (21, 18497453), (39, 9960167), (91, 4268643), (273, 1422881), (449, 865137), (1347, 288379), (3143, 123591), (3169, 122577), (5837, 66549), (9429, 41197), (9507, 40859), (17511, 22183)]