18745688

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{180247}}^1$

素因数の和:180266

約数の個数: 16

約数和(自身を含む): 37852080

約数和(自身を除く): 19106392

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 180247, 360494, 720988, 1441976, 2343211, 4686422, 9372844, 18745688]

約数ペア:

[(1, 18745688), (2, 9372844), (4, 4686422), (8, 2343211), (13, 1441976), (26, 720988), (52, 360494), (104, 180247)]