18993494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{10289}}^1$

素因数の和:10375

約数の個数: 16

約数和(自身を含む): 31116960

約数和(自身を除く): 12123466

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 10289, 20578, 133757, 267514, 730519, 1461038, 9496747, 18993494]

約数ペア:

[(1, 18993494), (2, 9496747), (13, 1461038), (26, 730519), (71, 267514), (142, 133757), (923, 20578), (1846, 10289)]