28787283

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19867}}^1$

素因数の和:19903

約数の個数: 24

約数和(自身を含む): 49590528

約数和(自身を除く): 20803245

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 19867, 59601, 139069, 178803, 417207, 456941, 1251621, 1370823, 3198587, 4112469, 9595761, 28787283]

約数ペア:

[(1, 28787283), (3, 9595761), (7, 4112469), (9, 3198587), (21, 1370823), (23, 1251621), (63, 456941), (69, 417207), (161, 178803), (207, 139069), (483, 59601), (1449, 19867)]