20443665

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5387}}^1$

素因数の和:5429

約数の個数: 32

約数和(自身を含む): 37241856

約数和(自身を除く): 16798191

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 5387, 16161, 26935, 59257, 80805, 123901, 177771, 296285, 371703, 619505, 888855, 1362911, 1858515, 4088733, 6814555, 20443665]

約数ペア:

[(1, 20443665), (3, 6814555), (5, 4088733), (11, 1858515), (15, 1362911), (23, 888855), (33, 619505), (55, 371703), (69, 296285), (115, 177771), (165, 123901), (253, 80805), (345, 59257), (759, 26935), (1265, 16161), (3795, 5387)]