21730401

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31357}}^1$

素因数の和:31381

約数の個数: 24

約数和(自身を含む): 39134784

約数和(自身を除く): 17404383

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 31357, 94071, 219499, 282213, 344927, 658497, 1034781, 1975491, 2414489, 3104343, 7243467, 21730401]

約数ペア:

[(1, 21730401), (3, 7243467), (7, 3104343), (9, 2414489), (11, 1975491), (21, 1034781), (33, 658497), (63, 344927), (77, 282213), (99, 219499), (231, 94071), (693, 31357)]