18418815

素因数分解:

$3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1031}}^1$

素因数の和:1439

約数の個数: 24

約数和(自身を含む): 32037408

約数和(自身を除く): 13618593

約数列:

[1, 3, 5, 9, 15, 45, 397, 1031, 1191, 1985, 3093, 3573, 5155, 5955, 9279, 15465, 17865, 46395, 409307, 1227921, 2046535, 3683763, 6139605, 18418815]

約数ペア:

[(1, 18418815), (3, 6139605), (5, 3683763), (9, 2046535), (15, 1227921), (45, 409307), (397, 46395), (1031, 17865), (1191, 15465), (1985, 9279), (3093, 5955), (3573, 5155)]