21959665

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{167}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 34659072

約数和(自身を除く): 12699407

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 167, 221, 289, 455, 595, 835, 1105, 1169, 1445, 1547, 2023, 2171, 2839, 3757, 5845, 7735, 10115, 10855, 14195, 15197, 18785, 19873, 26299, 36907, 48263, 75985, 99365, 131495, 184535, 241315, 258349, 337841, 627419, 1291745, 1689205, 3137095, 4391933, 21959665]

約数ペア:

[(1, 21959665), (5, 4391933), (7, 3137095), (13, 1689205), (17, 1291745), (35, 627419), (65, 337841), (85, 258349), (91, 241315), (119, 184535), (167, 131495), (221, 99365), (289, 75985), (455, 48263), (595, 36907), (835, 26299), (1105, 19873), (1169, 18785), (1445, 15197), (1547, 14195), (2023, 10855), (2171, 10115), (2839, 7735), (3757, 5845)]