21979107

素因数分解:

$3^5\times {\mathrm{151}}^1\times {\mathrm{599}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 33196800

約数和(自身を除く): 11217693

約数列:

[1, 3, 9, 27, 81, 151, 243, 453, 599, 1359, 1797, 4077, 5391, 12231, 16173, 36693, 48519, 90449, 145557, 271347, 814041, 2442123, 7326369, 21979107]

約数ペア:

[(1, 21979107), (3, 7326369), (9, 2442123), (27, 814041), (81, 271347), (151, 145557), (243, 90449), (453, 48519), (599, 36693), (1359, 16173), (1797, 12231), (4077, 5391)]