281861853

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{60733}}^1$

素因数の和:60773

約数の個数: 32

約数和(自身を含む): 489758976

約数和(自身を除く): 207897123

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 60733, 182199, 425131, 789529, 1032461, 1275393, 2368587, 3097383, 5526703, 7227227, 13421993, 16580109, 21681681, 40265979, 93953951, 281861853]

約数ペア:

[(1, 281861853), (3, 93953951), (7, 40265979), (13, 21681681), (17, 16580109), (21, 13421993), (39, 7227227), (51, 5526703), (91, 3097383), (119, 2368587), (221, 1275393), (273, 1032461), (357, 789529), (663, 425131), (1547, 182199), (4641, 60733)]