638406

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{1223}}^1$

素因数の和:1260

約数の個数: 24

約数和(自身を含む): 1432080

約数和(自身を除く): 793674

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 261, 522, 1223, 2446, 3669, 7338, 11007, 22014, 35467, 70934, 106401, 212802, 319203, 638406]

約数ペア:

[(1, 638406), (2, 319203), (3, 212802), (6, 106401), (9, 70934), (18, 35467), (29, 22014), (58, 11007), (87, 7338), (174, 3669), (261, 2446), (522, 1223)]