20386517039

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{26387}}^1$

素因数の和:26607

約数の個数: 32

約数和(自身を含む): 25349368320

約数和(自身を除く): 4962851281

約数列:

[1, 7, 19, 37, 133, 157, 259, 703, 1099, 2983, 4921, 5809, 20881, 26387, 40663, 110371, 184709, 501353, 772597, 976319, 3509471, 4142759, 6834233, 18550061, 28999313, 78712421, 129850427, 153282083, 550986947, 1072974581, 2912359577, 20386517039]

約数ペア:

[(1, 20386517039), (7, 2912359577), (19, 1072974581), (37, 550986947), (133, 153282083), (157, 129850427), (259, 78712421), (703, 28999313), (1099, 18550061), (2983, 6834233), (4921, 4142759), (5809, 3509471), (20881, 976319), (26387, 772597), (40663, 501353), (110371, 184709)]