21155454

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^2\times {\mathrm{1223}}^1$

素因数の和:1293

約数の個数: 36

約数和(自身を含む): 47401848

約数和(自身を除く): 26246394

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558, 961, 1223, 1922, 2446, 2883, 3669, 5766, 7338, 8649, 11007, 17298, 22014, 37913, 75826, 113739, 227478, 341217, 682434, 1175303, 2350606, 3525909, 7051818, 10577727, 21155454]

約数ペア:

[(1, 21155454), (2, 10577727), (3, 7051818), (6, 3525909), (9, 2350606), (18, 1175303), (31, 682434), (62, 341217), (93, 227478), (186, 113739), (279, 75826), (558, 37913), (961, 22014), (1223, 17298), (1922, 11007), (2446, 8649), (2883, 7338), (3669, 5766)]