18984915

素因数分解:

$3^3\times 5^1\times {\mathrm{140629}}^1$

素因数の和:140643

約数の個数: 16

約数和(自身を含む): 33751200

約数和(自身を除く): 14766285

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 140629, 421887, 703145, 1265661, 2109435, 3796983, 6328305, 18984915]

約数ペア:

[(1, 18984915), (3, 6328305), (5, 3796983), (9, 2109435), (15, 1265661), (27, 703145), (45, 421887), (135, 140629)]