21240843

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{1213}}^1$

素因数の和:1678

約数の個数: 16

約数和(自身を含む): 30592800

約数和(自身を除く): 9351957

約数列:

[1, 3, 13, 39, 449, 1213, 1347, 3639, 5837, 15769, 17511, 47307, 544637, 1633911, 7080281, 21240843]

約数ペア:

[(1, 21240843), (3, 7080281), (13, 1633911), (39, 544637), (449, 47307), (1213, 17511), (1347, 15769), (3639, 5837)]