21020406

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{1087}}^1$

素因数の和:1396

約数の個数: 32

約数和(自身を含む): 46061568

約数和(自身を除く): 25041162

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 293, 586, 879, 1087, 1758, 2174, 3223, 3261, 6446, 6522, 9669, 11957, 19338, 23914, 35871, 71742, 318491, 636982, 955473, 1910946, 3503401, 7006802, 10510203, 21020406]

約数ペア:

[(1, 21020406), (2, 10510203), (3, 7006802), (6, 3503401), (11, 1910946), (22, 955473), (33, 636982), (66, 318491), (293, 71742), (586, 35871), (879, 23914), (1087, 19338), (1758, 11957), (2174, 9669), (3223, 6522), (3261, 6446)]