19660401

素因数分解:

$3^6\times {\mathrm{149}}^1\times {\mathrm{181}}^1$

素因数の和:348

約数の個数: 28

約数和(自身を含む): 29838900

約数和(自身を除く): 10178499

約数列:

[1, 3, 9, 27, 81, 149, 181, 243, 447, 543, 729, 1341, 1629, 4023, 4887, 12069, 14661, 26969, 36207, 43983, 80907, 108621, 131949, 242721, 728163, 2184489, 6553467, 19660401]

約数ペア:

[(1, 19660401), (3, 6553467), (9, 2184489), (27, 728163), (81, 242721), (149, 131949), (181, 108621), (243, 80907), (447, 43983), (543, 36207), (729, 26969), (1341, 14661), (1629, 12069), (4023, 4887)]