20193771

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 30284352

約数和(自身を除く): 10090581

約数列:

[1, 3, 13, 39, 41, 73, 123, 173, 219, 519, 533, 949, 1599, 2249, 2847, 2993, 6747, 7093, 8979, 12629, 21279, 37887, 38909, 92209, 116727, 164177, 276627, 492531, 517789, 1553367, 6731257, 20193771]

約数ペア:

[(1, 20193771), (3, 6731257), (13, 1553367), (39, 517789), (41, 492531), (73, 276627), (123, 164177), (173, 116727), (219, 92209), (519, 38909), (533, 37887), (949, 21279), (1599, 12629), (2249, 8979), (2847, 7093), (2993, 6747)]