19812112

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13913}}^1$

素因数の和:14010

約数の個数: 20

約数和(自身を含む): 38820060

約数和(自身を除く): 19007948

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13913, 27826, 55652, 111304, 222608, 1238257, 2476514, 4953028, 9906056, 19812112]

約数ペア:

[(1, 19812112), (2, 9906056), (4, 4953028), (8, 2476514), (16, 1238257), (89, 222608), (178, 111304), (356, 55652), (712, 27826), (1424, 13913)]