18677968

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{68669}}^1$

素因数の和:68694

約数の個数: 20

約数和(自身を含む): 38317860

約数和(自身を除く): 19639892

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 68669, 137338, 274676, 549352, 1098704, 1167373, 2334746, 4669492, 9338984, 18677968]

約数ペア:

[(1, 18677968), (2, 9338984), (4, 4669492), (8, 2334746), (16, 1167373), (17, 1098704), (34, 549352), (68, 274676), (136, 137338), (272, 68669)]