20901612

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40507}}^1$

素因数の和:40557

約数の個数: 24

約数和(自身を含む): 49905856

約数和(自身を除く): 29004244

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40507, 81014, 121521, 162028, 243042, 486084, 1741801, 3483602, 5225403, 6967204, 10450806, 20901612]

約数ペア:

[(1, 20901612), (2, 10450806), (3, 6967204), (4, 5225403), (6, 3483602), (12, 1741801), (43, 486084), (86, 243042), (129, 162028), (172, 121521), (258, 81014), (516, 40507)]