281472009

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{60649}}^1$

素因数の和:60689

約数の個数: 32

約数和(自身を含む): 489081600

約数和(自身を除く): 207609591

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 60649, 181947, 424543, 788437, 1031033, 1273629, 2365311, 3093099, 5519059, 7217231, 13403429, 16557177, 21651693, 40210287, 93824003, 281472009]

約数ペア:

[(1, 281472009), (3, 93824003), (7, 40210287), (13, 21651693), (17, 16557177), (21, 13403429), (39, 7217231), (51, 5519059), (91, 3093099), (119, 2365311), (221, 1273629), (273, 1031033), (357, 788437), (663, 424543), (1547, 181947), (4641, 60649)]