28431666

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{22247}}^1$

素因数の和:22326

約数の個数: 24

約数和(自身を含む): 62472384

約数和(自身を除く): 34040718

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 22247, 44494, 66741, 133482, 200223, 400446, 1579537, 3159074, 4738611, 9477222, 14215833, 28431666]

約数ペア:

[(1, 28431666), (2, 14215833), (3, 9477222), (6, 4738611), (9, 3159074), (18, 1579537), (71, 400446), (142, 200223), (213, 133482), (426, 66741), (639, 44494), (1278, 22247)]