21991374

素因数分解:

$2^1\times 3^2\times {\mathrm{367}}^1\times {\mathrm{3329}}^1$

素因数の和:3704

約数の個数: 24

約数和(自身を含む): 47792160

約数和(自身を除く): 25800786

約数列:

[1, 2, 3, 6, 9, 18, 367, 734, 1101, 2202, 3303, 3329, 6606, 6658, 9987, 19974, 29961, 59922, 1221743, 2443486, 3665229, 7330458, 10995687, 21991374]

約数ペア:

[(1, 21991374), (2, 10995687), (3, 7330458), (6, 3665229), (9, 2443486), (18, 1221743), (367, 59922), (734, 29961), (1101, 19974), (2202, 9987), (3303, 6658), (3329, 6606)]