7978347

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 13555360

約数和(自身を除く): 5577013

約数列:

[1, 3, 9, 13, 19, 37, 39, 57, 97, 111, 117, 171, 247, 291, 333, 481, 703, 741, 873, 1261, 1443, 1843, 2109, 2223, 3589, 3783, 4329, 5529, 6327, 9139, 10767, 11349, 16587, 23959, 27417, 32301, 46657, 68191, 71877, 82251, 139971, 204573, 215631, 419913, 613719, 886483, 2659449, 7978347]

約数ペア:

[(1, 7978347), (3, 2659449), (9, 886483), (13, 613719), (19, 419913), (37, 215631), (39, 204573), (57, 139971), (97, 82251), (111, 71877), (117, 68191), (171, 46657), (247, 32301), (291, 27417), (333, 23959), (481, 16587), (703, 11349), (741, 10767), (873, 9139), (1261, 6327), (1443, 5529), (1843, 4329), (2109, 3783), (2223, 3589)]