20551305

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{839}}^1$

素因数の和:941

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 14285175

約数列:

[1, 3, 5, 15, 23, 69, 71, 115, 213, 345, 355, 839, 1065, 1633, 2517, 4195, 4899, 8165, 12585, 19297, 24495, 57891, 59569, 96485, 178707, 289455, 297845, 893535, 1370087, 4110261, 6850435, 20551305]

約数ペア:

[(1, 20551305), (3, 6850435), (5, 4110261), (15, 1370087), (23, 893535), (69, 297845), (71, 289455), (115, 178707), (213, 96485), (345, 59569), (355, 57891), (839, 24495), (1065, 19297), (1633, 12585), (2517, 8165), (4195, 4899)]