21746620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{155333}}^1$

素因数の和:155349

約数の個数: 24

約数和(自身を含む): 52192224

約数和(自身を除く): 30445604

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 155333, 310666, 621332, 776665, 1087331, 1553330, 2174662, 3106660, 4349324, 5436655, 10873310, 21746620]

約数ペア:

[(1, 21746620), (2, 10873310), (4, 5436655), (5, 4349324), (7, 3106660), (10, 2174662), (14, 1553330), (20, 1087331), (28, 776665), (35, 621332), (70, 310666), (140, 155333)]