17980924

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:494

約数の個数: 36

約数和(自身を含む): 34668984

約数和(自身を除く): 16688060

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 169, 268, 338, 397, 676, 794, 871, 1588, 1742, 3484, 5161, 10322, 11323, 20644, 22646, 26599, 45292, 53198, 67093, 106396, 134186, 268372, 345787, 691574, 1383148, 4495231, 8990462, 17980924]

約数ペア:

[(1, 17980924), (2, 8990462), (4, 4495231), (13, 1383148), (26, 691574), (52, 345787), (67, 268372), (134, 134186), (169, 106396), (268, 67093), (338, 53198), (397, 45292), (676, 26599), (794, 22646), (871, 20644), (1588, 11323), (1742, 10322), (3484, 5161)]