21221060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151579}}^1$

素因数の和:151595

約数の個数: 24

約数和(自身を含む): 50930880

約数和(自身を除く): 29709820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151579, 303158, 606316, 757895, 1061053, 1515790, 2122106, 3031580, 4244212, 5305265, 10610530, 21221060]

約数ペア:

[(1, 21221060), (2, 10610530), (4, 5305265), (5, 4244212), (7, 3031580), (10, 2122106), (14, 1515790), (20, 1061053), (28, 757895), (35, 606316), (70, 303158), (140, 151579)]