18721690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{144013}}^1$

素因数の和:144033

約数の個数: 16

約数和(自身を含む): 36291528

約数和(自身を除く): 17569838

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 144013, 288026, 720065, 1440130, 1872169, 3744338, 9360845, 18721690]

約数ペア:

[(1, 18721690), (2, 9360845), (5, 3744338), (10, 1872169), (13, 1440130), (26, 720065), (65, 288026), (130, 144013)]