20428174

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:364

約数の個数: 32

約数和(自身を含む): 34312320

約数和(自身を除く): 13884146

約数列:

[1, 2, 13, 26, 47, 73, 94, 146, 229, 458, 611, 949, 1222, 1898, 2977, 3431, 5954, 6862, 10763, 16717, 21526, 33434, 44603, 89206, 139919, 217321, 279838, 434642, 785699, 1571398, 10214087, 20428174]

約数ペア:

[(1, 20428174), (2, 10214087), (13, 1571398), (26, 785699), (47, 434642), (73, 279838), (94, 217321), (146, 139919), (229, 89206), (458, 44603), (611, 33434), (949, 21526), (1222, 16717), (1898, 10763), (2977, 6862), (3431, 5954)]