253457721

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{1319}}^1$

素因数の和:1986

約数の個数: 32

約数和(自身を含む): 410572800

約数和(自身を除く): 157115079

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 647, 1319, 1941, 3957, 5823, 7117, 11871, 14509, 17469, 21351, 35613, 43527, 64053, 130581, 192159, 391743, 853393, 2560179, 7680537, 9387323, 23041611, 28161969, 84485907, 253457721]

約数ペア:

[(1, 253457721), (3, 84485907), (9, 28161969), (11, 23041611), (27, 9387323), (33, 7680537), (99, 2560179), (297, 853393), (647, 391743), (1319, 192159), (1941, 130581), (3957, 64053), (5823, 43527), (7117, 35613), (11871, 21351), (14509, 17469)]