18240015

素因数分解:

$3^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{2389}}^1$

素因数の和:2906

約数の個数: 16

約数和(自身を含む): 29253600

約数和(自身を除く): 11013585

約数列:

[1, 3, 5, 15, 509, 1527, 2389, 2545, 7167, 7635, 11945, 35835, 1216001, 3648003, 6080005, 18240015]

約数ペア:

[(1, 18240015), (3, 6080005), (5, 3648003), (15, 1216001), (509, 35835), (1527, 11945), (2389, 7635), (2545, 7167)]