20201426

素因数分解:

$2^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1483}}^1$

素因数の和:1638

約数の個数: 24

約数和(自身を含む): 35526960

約数和(自身を除く): 15325534

約数列:

[1, 2, 7, 14, 49, 98, 139, 278, 973, 1483, 1946, 2966, 6811, 10381, 13622, 20762, 72667, 145334, 206137, 412274, 1442959, 2885918, 10100713, 20201426]

約数ペア:

[(1, 20201426), (2, 10100713), (7, 2885918), (14, 1442959), (49, 412274), (98, 206137), (139, 145334), (278, 72667), (973, 20762), (1483, 13622), (1946, 10381), (2966, 6811)]