16991380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{121367}}^1$

素因数の和:121383

約数の個数: 24

約数和(自身を含む): 40779648

約数和(自身を除く): 23788268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 121367, 242734, 485468, 606835, 849569, 1213670, 1699138, 2427340, 3398276, 4247845, 8495690, 16991380]

約数ペア:

[(1, 16991380), (2, 8495690), (4, 4247845), (5, 3398276), (7, 2427340), (10, 1699138), (14, 1213670), (20, 849569), (28, 606835), (35, 485468), (70, 242734), (140, 121367)]