261958347

素因数分解:

$3^3\times 7^1\times {\mathrm{101}}^1\times {\mathrm{13723}}^1$

素因数の和:13840

約数の個数: 32

約数和(自身を含む): 447951360

約数和(自身を除く): 185993013

約数列:

[1, 3, 7, 9, 21, 27, 63, 101, 189, 303, 707, 909, 2121, 2727, 6363, 13723, 19089, 41169, 96061, 123507, 288183, 370521, 864549, 1386023, 2593647, 4158069, 9702161, 12474207, 29106483, 37422621, 87319449, 261958347]

約数ペア:

[(1, 261958347), (3, 87319449), (7, 37422621), (9, 29106483), (21, 12474207), (27, 9702161), (63, 4158069), (101, 2593647), (189, 1386023), (303, 864549), (707, 370521), (909, 288183), (2121, 123507), (2727, 96061), (6363, 41169), (13723, 19089)]