17939961

素因数分解:

$3^7\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 29021440

約数和(自身を除く): 11081479

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 631, 729, 1053, 1893, 2187, 3159, 5679, 8203, 9477, 17037, 24609, 28431, 51111, 73827, 153333, 221481, 459999, 664443, 1379997, 1993329, 5979987, 17939961]

約数ペア:

[(1, 17939961), (3, 5979987), (9, 1993329), (13, 1379997), (27, 664443), (39, 459999), (81, 221481), (117, 153333), (243, 73827), (351, 51111), (631, 28431), (729, 24609), (1053, 17037), (1893, 9477), (2187, 8203), (3159, 5679)]