247492917

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1039}}^1$

素因数の和:1270

約数の個数: 48

約数和(自身を含む): 432640000

約数和(自身を除く): 185147083

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 199, 399, 597, 1039, 1197, 1393, 1791, 3117, 3781, 4179, 7273, 9351, 11343, 12537, 19741, 21819, 26467, 34029, 59223, 65457, 79401, 138187, 177669, 206761, 238203, 414561, 620283, 1243683, 1447327, 1860849, 3928459, 4341981, 11785377, 13025943, 27499213, 35356131, 82497639, 247492917]

約数ペア:

[(1, 247492917), (3, 82497639), (7, 35356131), (9, 27499213), (19, 13025943), (21, 11785377), (57, 4341981), (63, 3928459), (133, 1860849), (171, 1447327), (199, 1243683), (399, 620283), (597, 414561), (1039, 238203), (1197, 206761), (1393, 177669), (1791, 138187), (3117, 79401), (3781, 65457), (4179, 59223), (7273, 34029), (9351, 26467), (11343, 21819), (12537, 19741)]