21902097

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6907}}^1$

素因数の和:7068

約数の個数: 16

約数和(自身を含む): 33600512

約数和(自身を除く): 11698415

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6907, 20721, 48349, 145047, 1042957, 3128871, 7300699, 21902097]

約数ペア:

[(1, 21902097), (3, 7300699), (7, 3128871), (21, 1042957), (151, 145047), (453, 48349), (1057, 20721), (3171, 6907)]