256622961

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{260003}}^1$

素因数の和:260060

約数の個数: 16

約数和(自身を含む): 399366144

約数和(自身を除く): 142743183

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 260003, 780009, 1820021, 5460063, 12220141, 36660423, 85540987, 256622961]

約数ペア:

[(1, 256622961), (3, 85540987), (7, 36660423), (21, 12220141), (47, 5460063), (141, 1820021), (329, 780009), (987, 260003)]