286780221

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{350159}}^1$

素因数の和:350185

約数の個数: 24

約数和(自身を含む): 509832960

約数和(自身を除く): 223052739

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 350159, 1050477, 2451113, 3151431, 4552067, 7353339, 13656201, 22060017, 31864469, 40968603, 95593407, 286780221]

約数ペア:

[(1, 286780221), (3, 95593407), (7, 40968603), (9, 31864469), (13, 22060017), (21, 13656201), (39, 7353339), (63, 4552067), (91, 3151431), (117, 2451113), (273, 1050477), (819, 350159)]