28981515

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1277}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 49688640

約数和(自身を除く): 20707125

約数列:

[1, 3, 5, 15, 17, 51, 85, 89, 255, 267, 445, 1277, 1335, 1513, 3831, 4539, 6385, 7565, 19155, 21709, 22695, 65127, 108545, 113653, 325635, 340959, 568265, 1704795, 1932101, 5796303, 9660505, 28981515]

約数ペア:

[(1, 28981515), (3, 9660505), (5, 5796303), (15, 1932101), (17, 1704795), (51, 568265), (85, 340959), (89, 325635), (255, 113653), (267, 108545), (445, 65127), (1277, 22695), (1335, 21709), (1513, 19155), (3831, 7565), (4539, 6385)]