20283781

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{709}}^1$

素因数の和:844

約数の個数: 16

約数和(自身を含む): 23946880

約数和(自身を除く): 3663099

約数列:

[1, 7, 61, 67, 427, 469, 709, 4087, 4963, 28609, 43249, 47503, 302743, 332521, 2897683, 20283781]

約数ペア:

[(1, 20283781), (7, 2897683), (61, 332521), (67, 302743), (427, 47503), (469, 43249), (709, 28609), (4087, 4963)]