18978494

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{4261}}^1$

素因数の和:4411

約数の個数: 16

約数和(自身を含む): 30379536

約数和(自身を除く): 11401042

約数列:

[1, 2, 17, 34, 131, 262, 2227, 4261, 4454, 8522, 72437, 144874, 558191, 1116382, 9489247, 18978494]

約数ペア:

[(1, 18978494), (2, 9489247), (17, 1116382), (34, 558191), (131, 144874), (262, 72437), (2227, 8522), (4261, 4454)]