661064516

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1388791}}^1$

素因数の和:1388819

約数の個数: 24

約数和(自身を含む): 1399902336

約数和(自身を除く): 738837820

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 1388791, 2777582, 5555164, 9721537, 19443074, 23609447, 38886148, 47218894, 94437788, 165266129, 330532258, 661064516]

約数ペア:

[(1, 661064516), (2, 330532258), (4, 165266129), (7, 94437788), (14, 47218894), (17, 38886148), (28, 23609447), (34, 19443074), (68, 9721537), (119, 5555164), (238, 2777582), (476, 1388791)]