20672218

素因数分解:

$2^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{2971}}^1$

素因数の和:3058

約数の個数: 24

約数和(自身を含む): 36591264

約数和(自身を除く): 15919046

約数列:

[1, 2, 7, 14, 49, 71, 98, 142, 497, 994, 2971, 3479, 5942, 6958, 20797, 41594, 145579, 210941, 291158, 421882, 1476587, 2953174, 10336109, 20672218]

約数ペア:

[(1, 20672218), (2, 10336109), (7, 2953174), (14, 1476587), (49, 421882), (71, 291158), (98, 210941), (142, 145579), (497, 41594), (994, 20797), (2971, 6958), (3479, 5942)]