20551581

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{983}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 31314816

約数和(自身を除く): 10763235

約数列:

[1, 3, 9, 23, 69, 101, 207, 303, 909, 983, 2323, 2949, 6969, 8847, 20907, 22609, 67827, 99283, 203481, 297849, 893547, 2283509, 6850527, 20551581]

約数ペア:

[(1, 20551581), (3, 6850527), (9, 2283509), (23, 893547), (69, 297849), (101, 203481), (207, 99283), (303, 67827), (909, 22609), (983, 20907), (2323, 8847), (2949, 6969)]