19803978

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{35491}}^1$

素因数の和:35530

約数の個数: 24

約数和(自身を含む): 44294016

約数和(自身を除く): 24490038

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 35491, 70982, 106473, 212946, 319419, 638838, 1100221, 2200442, 3300663, 6601326, 9901989, 19803978]

約数ペア:

[(1, 19803978), (2, 9901989), (3, 6601326), (6, 3300663), (9, 2200442), (18, 1100221), (31, 638838), (62, 319419), (93, 212946), (186, 106473), (279, 70982), (558, 35491)]