285220257

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{171923}}^1$

素因数の和:172012

約数の個数: 16

約数和(自身を含む): 440125440

約数和(自身を除く): 154905183

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 171923, 515769, 1203461, 3610383, 13581917, 40745751, 95073419, 285220257]

約数ペア:

[(1, 285220257), (3, 95073419), (7, 40745751), (21, 13581917), (79, 3610383), (237, 1203461), (553, 515769), (1659, 171923)]