21811467

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1\times {\mathrm{463}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 29933568

約数和(自身を除く): 8122101

約数列:

[1, 3, 41, 123, 383, 463, 1149, 1389, 15703, 18983, 47109, 56949, 177329, 531987, 7270489, 21811467]

約数ペア:

[(1, 21811467), (3, 7270489), (41, 531987), (123, 177329), (383, 56949), (463, 47109), (1149, 18983), (1389, 15703)]