28870413

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 45601920

約数和(自身を除く): 16731507

約数列:

[1, 3, 11, 13, 33, 39, 143, 173, 389, 429, 519, 1167, 1903, 2249, 4279, 5057, 5709, 6747, 12837, 15171, 24739, 55627, 67297, 74217, 166881, 201891, 740267, 874861, 2220801, 2624583, 9623471, 28870413]

約数ペア:

[(1, 28870413), (3, 9623471), (11, 2624583), (13, 2220801), (33, 874861), (39, 740267), (143, 201891), (173, 166881), (389, 74217), (429, 67297), (519, 55627), (1167, 24739), (1903, 15171), (2249, 12837), (4279, 6747), (5057, 5709)]