19778236

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{1453}}^1$

素因数の和:1581

約数の個数: 24

約数和(自身を含む): 35907984

約数和(自身を除く): 16129748

約数列:

[1, 2, 4, 41, 82, 83, 164, 166, 332, 1453, 2906, 3403, 5812, 6806, 13612, 59573, 119146, 120599, 238292, 241198, 482396, 4944559, 9889118, 19778236]

約数ペア:

[(1, 19778236), (2, 9889118), (4, 4944559), (41, 482396), (82, 241198), (83, 238292), (164, 120599), (166, 119146), (332, 59573), (1453, 13612), (2906, 6806), (3403, 5812)]