21679434

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{691}}^1$

素因数の和:792

約数の個数: 64

約数和(自身を含む): 55802880

約数和(自身を除く): 34123446

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 83, 126, 166, 189, 249, 378, 498, 581, 691, 747, 1162, 1382, 1494, 1743, 2073, 2241, 3486, 4146, 4482, 4837, 5229, 6219, 9674, 10458, 12438, 14511, 15687, 18657, 29022, 31374, 37314, 43533, 57353, 87066, 114706, 130599, 172059, 261198, 344118, 401471, 516177, 802942, 1032354, 1204413, 1548531, 2408826, 3097062, 3613239, 7226478, 10839717, 21679434]

約数ペア:

[(1, 21679434), (2, 10839717), (3, 7226478), (6, 3613239), (7, 3097062), (9, 2408826), (14, 1548531), (18, 1204413), (21, 1032354), (27, 802942), (42, 516177), (54, 401471), (63, 344118), (83, 261198), (126, 172059), (166, 130599), (189, 114706), (249, 87066), (378, 57353), (498, 43533), (581, 37314), (691, 31374), (747, 29022), (1162, 18657), (1382, 15687), (1494, 14511), (1743, 12438), (2073, 10458), (2241, 9674), (3486, 6219), (4146, 5229), (4482, 4837)]