261095421

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 370476288

約数和(自身を除く): 109380867

約数列:

[1, 3, 37, 41, 103, 111, 123, 309, 557, 1517, 1671, 3811, 4223, 4551, 11433, 12669, 20609, 22837, 57371, 61827, 68511, 156251, 172113, 468753, 844969, 2122727, 2352211, 2534907, 6368181, 7056633, 87031807, 261095421]

約数ペア:

[(1, 261095421), (3, 87031807), (37, 7056633), (41, 6368181), (103, 2534907), (111, 2352211), (123, 2122727), (309, 844969), (557, 468753), (1517, 172113), (1671, 156251), (3811, 68511), (4223, 61827), (4551, 57371), (11433, 22837), (12669, 20609)]