20503642

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{907}}^1$

素因数の和:1125

約数の個数: 16

約数和(自身を含む): 31380480

約数和(自身を除く): 10876838

約数列:

[1, 2, 89, 127, 178, 254, 907, 1814, 11303, 22606, 80723, 115189, 161446, 230378, 10251821, 20503642]

約数ペア:

[(1, 20503642), (2, 10251821), (89, 230378), (127, 161446), (178, 115189), (254, 80723), (907, 22606), (1814, 11303)]