20557212

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{131777}}^1$

素因数の和:131797

約数の個数: 24

約数和(自身を含む): 51656976

約数和(自身を除く): 31099764

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 131777, 263554, 395331, 527108, 790662, 1581324, 1713101, 3426202, 5139303, 6852404, 10278606, 20557212]

約数ペア:

[(1, 20557212), (2, 10278606), (3, 6852404), (4, 5139303), (6, 3426202), (12, 1713101), (13, 1581324), (26, 790662), (39, 527108), (52, 395331), (78, 263554), (156, 131777)]