20001927

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 32479488

約数和(自身を除く): 12477561

約数列:

[1, 3, 11, 19, 23, 33, 57, 69, 73, 209, 219, 253, 361, 437, 627, 759, 803, 1083, 1311, 1387, 1679, 2409, 3971, 4161, 4807, 5037, 8303, 11913, 14421, 15257, 18469, 24909, 26353, 31901, 45771, 55407, 79059, 91333, 95703, 273999, 289883, 350911, 606119, 869649, 1052733, 1818357, 6667309, 20001927]

約数ペア:

[(1, 20001927), (3, 6667309), (11, 1818357), (19, 1052733), (23, 869649), (33, 606119), (57, 350911), (69, 289883), (73, 273999), (209, 95703), (219, 91333), (253, 79059), (361, 55407), (437, 45771), (627, 31901), (759, 26353), (803, 24909), (1083, 18469), (1311, 15257), (1387, 14421), (1679, 11913), (2409, 8303), (3971, 5037), (4161, 4807)]