21193677

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{25321}}^1$

素因数の和:25361

約数の個数: 16

約数和(自身を含む): 32412160

約数和(自身を除く): 11218483

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 25321, 75963, 227889, 683667, 784951, 2354853, 7064559, 21193677]

約数ペア:

[(1, 21193677), (3, 7064559), (9, 2354853), (27, 784951), (31, 683667), (93, 227889), (279, 75963), (837, 25321)]