18871916

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{7573}}^1$

素因数の和:7673

約数の個数: 24

約数和(自身を含む): 38172960

約数和(自身を除く): 19301044

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 7573, 15146, 30292, 53011, 106022, 212044, 673997, 1347994, 2695988, 4717979, 9435958, 18871916]

約数ペア:

[(1, 18871916), (2, 9435958), (4, 4717979), (7, 2695988), (14, 1347994), (28, 673997), (89, 212044), (178, 106022), (356, 53011), (623, 30292), (1246, 15146), (2492, 7573)]