18749945

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3469}}^1$

素因数の和:3544

約数の個数: 16

約数和(自身を含む): 23984640

約数和(自身を除く): 5234695

約数列:

[1, 5, 23, 47, 115, 235, 1081, 3469, 5405, 17345, 79787, 163043, 398935, 815215, 3749989, 18749945]

約数ペア:

[(1, 18749945), (5, 3749989), (23, 815215), (47, 398935), (115, 163043), (235, 79787), (1081, 17345), (3469, 5405)]