27928257

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 44083200

約数和(自身を除く): 16154943

約数列:

[1, 3, 7, 21, 41, 123, 163, 199, 287, 489, 597, 861, 1141, 1393, 3423, 4179, 6683, 8159, 20049, 24477, 32437, 46781, 57113, 97311, 140343, 171339, 227059, 681177, 1329917, 3989751, 9309419, 27928257]

約数ペア:

[(1, 27928257), (3, 9309419), (7, 3989751), (21, 1329917), (41, 681177), (123, 227059), (163, 171339), (199, 140343), (287, 97311), (489, 57113), (597, 46781), (861, 32437), (1141, 24477), (1393, 20049), (3423, 8159), (4179, 6683)]