20792216

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 40042080

約数和(自身を除く): 19249864

約数列:

[1, 2, 4, 8, 61, 122, 137, 244, 274, 311, 488, 548, 622, 1096, 1244, 2488, 8357, 16714, 18971, 33428, 37942, 42607, 66856, 75884, 85214, 151768, 170428, 340856, 2599027, 5198054, 10396108, 20792216]

約数ペア:

[(1, 20792216), (2, 10396108), (4, 5198054), (8, 2599027), (61, 340856), (122, 170428), (137, 151768), (244, 85214), (274, 75884), (311, 66856), (488, 42607), (548, 37942), (622, 33428), (1096, 18971), (1244, 16714), (2488, 8357)]