21839608

素因数分解:

$2^3\times 7^1\times {\mathrm{571}}^1\times {\mathrm{683}}^1$

素因数の和:1267

約数の個数: 32

約数和(自身を含む): 46949760

約数和(自身を除く): 25110152

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 571, 683, 1142, 1366, 2284, 2732, 3997, 4568, 4781, 5464, 7994, 9562, 15988, 19124, 31976, 38248, 389993, 779986, 1559972, 2729951, 3119944, 5459902, 10919804, 21839608]

約数ペア:

[(1, 21839608), (2, 10919804), (4, 5459902), (7, 3119944), (8, 2729951), (14, 1559972), (28, 779986), (56, 389993), (571, 38248), (683, 31976), (1142, 19124), (1366, 15988), (2284, 9562), (2732, 7994), (3997, 5464), (4568, 4781)]