18418407

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{18661}}^1$

素因数の和:18718

約数の個数: 16

約数和(自身を含む): 28664832

約数和(自身を除く): 10246425

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 18661, 55983, 130627, 391881, 877067, 2631201, 6139469, 18418407]

約数ペア:

[(1, 18418407), (3, 6139469), (7, 2631201), (21, 877067), (47, 391881), (141, 130627), (329, 55983), (987, 18661)]