20989708

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{677}}^1$

素因数の和:1041

約数の個数: 24

約数和(自身を含む): 38499552

約数和(自身を除く): 17509844

約数列:

[1, 2, 4, 23, 46, 92, 337, 674, 677, 1348, 1354, 2708, 7751, 15502, 15571, 31004, 31142, 62284, 228149, 456298, 912596, 5247427, 10494854, 20989708]

約数ペア:

[(1, 20989708), (2, 10494854), (4, 5247427), (23, 912596), (46, 456298), (92, 228149), (337, 62284), (674, 31142), (677, 31004), (1348, 15571), (1354, 15502), (2708, 7751)]