20778618

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{15959}}^1$

素因数の和:16002

約数の個数: 32

約数和(自身を含む): 49029120

約数和(自身を除く): 28250502

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 651, 1302, 15959, 31918, 47877, 95754, 111713, 223426, 335139, 494729, 670278, 989458, 1484187, 2968374, 3463103, 6926206, 10389309, 20778618]

約数ペア:

[(1, 20778618), (2, 10389309), (3, 6926206), (6, 3463103), (7, 2968374), (14, 1484187), (21, 989458), (31, 670278), (42, 494729), (62, 335139), (93, 223426), (186, 111713), (217, 95754), (434, 47877), (651, 31918), (1302, 15959)]