21071110

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:792

約数の個数: 32

約数和(自身を含む): 39644640

約数和(自身を除く): 18573530

約数列:

[1, 2, 5, 10, 29, 58, 113, 145, 226, 290, 565, 643, 1130, 1286, 3215, 3277, 6430, 6554, 16385, 18647, 32770, 37294, 72659, 93235, 145318, 186470, 363295, 726590, 2107111, 4214222, 10535555, 21071110]

約数ペア:

[(1, 21071110), (2, 10535555), (5, 4214222), (10, 2107111), (29, 726590), (58, 363295), (113, 186470), (145, 145318), (226, 93235), (290, 72659), (565, 37294), (643, 32770), (1130, 18647), (1286, 16385), (3215, 6554), (3277, 6430)]