21465327

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{6967}}^1$

素因数の和:7062

約数の個数: 16

約数和(自身を含む): 31216640

約数和(自身を除く): 9751313

約数列:

[1, 3, 13, 39, 79, 237, 1027, 3081, 6967, 20901, 90571, 271713, 550393, 1651179, 7155109, 21465327]

約数ペア:

[(1, 21465327), (3, 7155109), (13, 1651179), (39, 550393), (79, 271713), (237, 90571), (1027, 20901), (3081, 6967)]