489409599

素因数分解:

$3^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{12659}}^1$

素因数の和:12939

約数の個数: 24

約数和(自身を含む): 762030720

約数和(自身を除く): 272621121

約数列:

[1, 3, 7, 21, 49, 147, 263, 789, 1841, 5523, 12659, 12887, 37977, 38661, 88613, 265839, 620291, 1860873, 3329317, 9987951, 23305219, 69915657, 163136533, 489409599]

約数ペア:

[(1, 489409599), (3, 163136533), (7, 69915657), (21, 23305219), (49, 9987951), (147, 3329317), (263, 1860873), (789, 620291), (1841, 265839), (5523, 88613), (12659, 38661), (12887, 37977)]