11855781

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:586

約数の個数: 32

約数和(自身を含む): 20256000

約数和(自身を除く): 8400219

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 421, 447, 1043, 1263, 1341, 2947, 3129, 3789, 4023, 8841, 9387, 11367, 26523, 28161, 62729, 79569, 188187, 439103, 564561, 1317309, 1693683, 3951927, 11855781]

約数ペア:

[(1, 11855781), (3, 3951927), (7, 1693683), (9, 1317309), (21, 564561), (27, 439103), (63, 188187), (149, 79569), (189, 62729), (421, 28161), (447, 26523), (1043, 11367), (1263, 9387), (1341, 8841), (2947, 4023), (3129, 3789)]