18677776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89797}}^1$

素因数の和:89818

約数の個数: 20

約数和(自身を含む): 38972332

約数和(自身を除く): 20294556

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89797, 179594, 359188, 718376, 1167361, 1436752, 2334722, 4669444, 9338888, 18677776]

約数ペア:

[(1, 18677776), (2, 9338888), (4, 4669444), (8, 2334722), (13, 1436752), (16, 1167361), (26, 718376), (52, 359188), (104, 179594), (208, 89797)]