520217139

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{1733}}^1$

素因数の和:1971

約数の個数: 32

約数和(自身を含む): 769063680

約数和(自身を除く): 248846541

約数列:

[1, 3, 13, 39, 43, 129, 179, 537, 559, 1677, 1733, 2327, 5199, 6981, 7697, 22529, 23091, 67587, 74519, 100061, 223557, 300183, 310207, 930621, 968747, 2906241, 4032691, 12098073, 13338901, 40016703, 173405713, 520217139]

約数ペア:

[(1, 520217139), (3, 173405713), (13, 40016703), (39, 13338901), (43, 12098073), (129, 4032691), (179, 2906241), (537, 968747), (559, 930621), (1677, 310207), (1733, 300183), (2327, 223557), (5199, 100061), (6981, 74519), (7697, 67587), (22529, 23091)]