1278387

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 2074800

約数和(自身を除く): 796413

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 349, 407, 1047, 1221, 3141, 3663, 3839, 11517, 12913, 34551, 38739, 116217, 142043, 426129, 1278387]

約数ペア:

[(1, 1278387), (3, 426129), (9, 142043), (11, 116217), (33, 38739), (37, 34551), (99, 12913), (111, 11517), (333, 3839), (349, 3663), (407, 3141), (1047, 1221)]