20809674

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{857}}^1$

素因数の和:955

約数の個数: 48

約数和(自身を含む): 48185280

約数和(自身を除く): 27375606

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 71, 114, 142, 171, 213, 342, 426, 639, 857, 1278, 1349, 1714, 2571, 2698, 4047, 5142, 7713, 8094, 12141, 15426, 16283, 24282, 32566, 48849, 60847, 97698, 121694, 146547, 182541, 293094, 365082, 547623, 1095246, 1156093, 2312186, 3468279, 6936558, 10404837, 20809674]

約数ペア:

[(1, 20809674), (2, 10404837), (3, 6936558), (6, 3468279), (9, 2312186), (18, 1156093), (19, 1095246), (38, 547623), (57, 365082), (71, 293094), (114, 182541), (142, 146547), (171, 121694), (213, 97698), (342, 60847), (426, 48849), (639, 32566), (857, 24282), (1278, 16283), (1349, 15426), (1714, 12141), (2571, 8094), (2698, 7713), (4047, 5142)]