18984645

素因数分解:

$3^3\times 5^1\times {\mathrm{140627}}^1$

素因数の和:140641

約数の個数: 16

約数和(自身を含む): 33750720

約数和(自身を除く): 14766075

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140627, 421881, 703135, 1265643, 2109405, 3796929, 6328215, 18984645]

約数ペア:

[(1, 18984645), (3, 6328215), (5, 3796929), (9, 2109405), (15, 1265643), (27, 703135), (45, 421881), (135, 140627)]