18917886

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{593}}^1$

素因数の和:1020

約数の個数: 32

約数和(自身を含む): 40914720

約数和(自身を除く): 21996834

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 409, 593, 818, 1186, 1227, 1779, 2454, 3558, 5317, 7709, 10634, 15418, 15951, 23127, 31902, 46254, 242537, 485074, 727611, 1455222, 3152981, 6305962, 9458943, 18917886]

約数ペア:

[(1, 18917886), (2, 9458943), (3, 6305962), (6, 3152981), (13, 1455222), (26, 727611), (39, 485074), (78, 242537), (409, 46254), (593, 31902), (818, 23127), (1186, 15951), (1227, 15418), (1779, 10634), (2454, 7709), (3558, 5317)]