21839692

素因数分解:

$2^2\times 7^2\times {\mathrm{111427}}^1$

素因数の和:111445

約数の個数: 18

約数和(自身を含む): 44459772

約数和(自身を除く): 22620080

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 111427, 222854, 445708, 779989, 1559978, 3119956, 5459923, 10919846, 21839692]

約数ペア:

[(1, 21839692), (2, 10919846), (4, 5459923), (7, 3119956), (14, 1559978), (28, 779989), (49, 445708), (98, 222854), (196, 111427)]