16556205

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1$

素因数の和:1365

約数の個数: 32

約数和(自身を含む): 28410624

約数和(自身を除く): 11854419

約数列:

[1, 3, 5, 15, 23, 37, 69, 111, 115, 185, 345, 555, 851, 1297, 2553, 3891, 4255, 6485, 12765, 19455, 29831, 47989, 89493, 143967, 149155, 239945, 447465, 719835, 1103747, 3311241, 5518735, 16556205]

約数ペア:

[(1, 16556205), (3, 5518735), (5, 3311241), (15, 1103747), (23, 719835), (37, 447465), (69, 239945), (111, 149155), (115, 143967), (185, 89493), (345, 47989), (555, 29831), (851, 19455), (1297, 12765), (2553, 6485), (3891, 4255)]