21072018

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{8629}}^1$

素因数の和:8682

約数の個数: 32

約数和(自身を含む): 47223360

約数和(自身を除く): 26151342

約数列:

[1, 2, 3, 6, 11, 22, 33, 37, 66, 74, 111, 222, 407, 814, 1221, 2442, 8629, 17258, 25887, 51774, 94919, 189838, 284757, 319273, 569514, 638546, 957819, 1915638, 3512003, 7024006, 10536009, 21072018]

約数ペア:

[(1, 21072018), (2, 10536009), (3, 7024006), (6, 3512003), (11, 1915638), (22, 957819), (33, 638546), (37, 569514), (66, 319273), (74, 284757), (111, 189838), (222, 94919), (407, 51774), (814, 25887), (1221, 17258), (2442, 8629)]