15662865

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 26749440

約数和(自身を除く): 11086575

約数列:

[1, 3, 5, 15, 17, 51, 85, 239, 255, 257, 717, 771, 1195, 1285, 3585, 3855, 4063, 4369, 12189, 13107, 20315, 21845, 60945, 61423, 65535, 184269, 307115, 921345, 1044191, 3132573, 5220955, 15662865]

約数ペア:

[(1, 15662865), (3, 5220955), (5, 3132573), (15, 1044191), (17, 921345), (51, 307115), (85, 184269), (239, 65535), (255, 61423), (257, 60945), (717, 21845), (771, 20315), (1195, 13107), (1285, 12189), (3585, 4369), (3855, 4063)]