18668665

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2801}}^1$

素因数の和:2880

約数の個数: 16

約数和(自身を含む): 23671296

約数和(自身を除く): 5002631

約数列:

[1, 5, 31, 43, 155, 215, 1333, 2801, 6665, 14005, 86831, 120443, 434155, 602215, 3733733, 18668665]

約数ペア:

[(1, 18668665), (5, 3733733), (31, 602215), (43, 434155), (155, 120443), (215, 86831), (1333, 14005), (2801, 6665)]