20943715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{769}}^1$

素因数の和:1206

約数の個数: 16

約数和(自身を含む): 27165600

約数和(自身を除く): 6221885

約数列:

[1, 5, 13, 65, 419, 769, 2095, 3845, 5447, 9997, 27235, 49985, 322211, 1611055, 4188743, 20943715]

約数ペア:

[(1, 20943715), (5, 4188743), (13, 1611055), (65, 322211), (419, 49985), (769, 27235), (2095, 9997), (3845, 5447)]