15991955

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 23048064

約数和(自身を除く): 7056109

約数列:

[1, 5, 7, 35, 37, 53, 185, 233, 259, 265, 371, 1165, 1295, 1631, 1855, 1961, 8155, 8621, 9805, 12349, 13727, 43105, 60347, 61745, 68635, 86443, 301735, 432215, 456913, 2284565, 3198391, 15991955]

約数ペア:

[(1, 15991955), (5, 3198391), (7, 2284565), (35, 456913), (37, 432215), (53, 301735), (185, 86443), (233, 68635), (259, 61745), (265, 60347), (371, 43105), (1165, 13727), (1295, 12349), (1631, 9805), (1855, 8621), (1961, 8155)]