20958555

素因数分解:

$3^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{2447}}^1$

素因数の和:3026

約数の個数: 16

約数和(自身を含む): 33606144

約数和(自身を除く): 12647589

約数列:

[1, 3, 5, 15, 571, 1713, 2447, 2855, 7341, 8565, 12235, 36705, 1397237, 4191711, 6986185, 20958555]

約数ペア:

[(1, 20958555), (3, 6986185), (5, 4191711), (15, 1397237), (571, 36705), (1713, 12235), (2447, 8565), (2855, 7341)]