20209455

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64157}}^1$

素因数の和:64175

約数の個数: 24

約数和(自身を含む): 40034592

約数和(自身を除く): 19825137

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64157, 192471, 320785, 449099, 577413, 962355, 1347297, 2245495, 2887065, 4041891, 6736485, 20209455]

約数ペア:

[(1, 20209455), (3, 6736485), (5, 4041891), (7, 2887065), (9, 2245495), (15, 1347297), (21, 962355), (35, 577413), (45, 449099), (63, 320785), (105, 192471), (315, 64157)]