18878156

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{5431}}^1$

素因数の和:5525

約数の個数: 24

約数和(自身を含む): 36503040

約数和(自身を除く): 17624884

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 5431, 10862, 21724, 59741, 119482, 238964, 429049, 858098, 1716196, 4719539, 9439078, 18878156]

約数ペア:

[(1, 18878156), (2, 9439078), (4, 4719539), (11, 1716196), (22, 858098), (44, 429049), (79, 238964), (158, 119482), (316, 59741), (869, 21724), (1738, 10862), (3476, 5431)]