7218081

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 12579840

約数和(自身を除く): 5361759

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 171, 191, 221, 247, 323, 573, 663, 741, 969, 1719, 1989, 2223, 2483, 2907, 3247, 3629, 4199, 7449, 9741, 10887, 12597, 22347, 29223, 32661, 37791, 42211, 47177, 61693, 126633, 141531, 185079, 379899, 424593, 555237, 802009, 2406027, 7218081]

約数ペア:

[(1, 7218081), (3, 2406027), (9, 802009), (13, 555237), (17, 424593), (19, 379899), (39, 185079), (51, 141531), (57, 126633), (117, 61693), (153, 47177), (171, 42211), (191, 37791), (221, 32661), (247, 29223), (323, 22347), (573, 12597), (663, 10887), (741, 9741), (969, 7449), (1719, 4199), (1989, 3629), (2223, 3247), (2483, 2907)]