20216812

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9377}}^1$

素因数の和:9406

約数の個数: 36

約数和(自身を含む): 44901864

約数和(自身を除く): 24685052

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9377, 18754, 37508, 65639, 103147, 131278, 206294, 262556, 412588, 459473, 722029, 918946, 1444058, 1837892, 2888116, 5054203, 10108406, 20216812]

約数ペア:

[(1, 20216812), (2, 10108406), (4, 5054203), (7, 2888116), (11, 1837892), (14, 1444058), (22, 918946), (28, 722029), (44, 459473), (49, 412588), (77, 262556), (98, 206294), (154, 131278), (196, 103147), (308, 65639), (539, 37508), (1078, 18754), (2156, 9377)]