21871806

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{331391}}^1$

素因数の和:331407

約数の個数: 16

約数和(自身を含む): 47720448

約数和(自身を除く): 25848642

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 331391, 662782, 994173, 1988346, 3645301, 7290602, 10935903, 21871806]

約数ペア:

[(1, 21871806), (2, 10935903), (3, 7290602), (6, 3645301), (11, 1988346), (22, 994173), (33, 662782), (66, 331391)]