18689606

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:360

約数の個数: 32

約数和(自身を含む): 31452960

約数和(自身を除く): 12763354

約数列:

[1, 2, 13, 26, 43, 73, 86, 146, 229, 458, 559, 949, 1118, 1898, 2977, 3139, 5954, 6278, 9847, 16717, 19694, 33434, 40807, 81614, 128011, 217321, 256022, 434642, 718831, 1437662, 9344803, 18689606]

約数ペア:

[(1, 18689606), (2, 9344803), (13, 1437662), (26, 718831), (43, 434642), (73, 256022), (86, 217321), (146, 128011), (229, 81614), (458, 40807), (559, 33434), (949, 19694), (1118, 16717), (1898, 9847), (2977, 6278), (3139, 5954)]