20354236

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{701}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 43872192

約数和(自身を除く): 23517956

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 61, 68, 119, 122, 238, 244, 427, 476, 701, 854, 1037, 1402, 1708, 2074, 2804, 4148, 4907, 7259, 9814, 11917, 14518, 19628, 23834, 29036, 42761, 47668, 83419, 85522, 166838, 171044, 299327, 333676, 598654, 726937, 1197308, 1453874, 2907748, 5088559, 10177118, 20354236]

約数ペア:

[(1, 20354236), (2, 10177118), (4, 5088559), (7, 2907748), (14, 1453874), (17, 1197308), (28, 726937), (34, 598654), (61, 333676), (68, 299327), (119, 171044), (122, 166838), (238, 85522), (244, 83419), (427, 47668), (476, 42761), (701, 29036), (854, 23834), (1037, 19628), (1402, 14518), (1708, 11917), (2074, 9814), (2804, 7259), (4148, 4907)]