20723164

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1103}}^1$

素因数の和:1186

約数の個数: 48

約数和(自身を含む): 45997056

約数和(自身を除く): 25273892

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 61, 77, 122, 154, 244, 308, 427, 671, 854, 1103, 1342, 1708, 2206, 2684, 4412, 4697, 7721, 9394, 12133, 15442, 18788, 24266, 30884, 48532, 67283, 84931, 134566, 169862, 269132, 339724, 470981, 740113, 941962, 1480226, 1883924, 2960452, 5180791, 10361582, 20723164]

約数ペア:

[(1, 20723164), (2, 10361582), (4, 5180791), (7, 2960452), (11, 1883924), (14, 1480226), (22, 941962), (28, 740113), (44, 470981), (61, 339724), (77, 269132), (122, 169862), (154, 134566), (244, 84931), (308, 67283), (427, 48532), (671, 30884), (854, 24266), (1103, 18788), (1342, 15442), (1708, 12133), (2206, 9394), (2684, 7721), (4412, 4697)]