7920423

素因数分解:

$3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{229}}^1$

素因数の和:309

約数の個数: 40

約数和(自身を含む): 13803680

約数和(自身を除く): 5883257

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 183, 189, 229, 427, 549, 567, 687, 1281, 1603, 1647, 2061, 3843, 4809, 4941, 6183, 11529, 13969, 14427, 18549, 34587, 41907, 43281, 97783, 125721, 129843, 293349, 377163, 880047, 1131489, 2640141, 7920423]

約数ペア:

[(1, 7920423), (3, 2640141), (7, 1131489), (9, 880047), (21, 377163), (27, 293349), (61, 129843), (63, 125721), (81, 97783), (183, 43281), (189, 41907), (229, 34587), (427, 18549), (549, 14427), (567, 13969), (687, 11529), (1281, 6183), (1603, 4941), (1647, 4809), (2061, 3843)]