21451178

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{467}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 39222144

約数和(自身を除く): 17770966

約数列:

[1, 2, 7, 14, 17, 34, 119, 193, 238, 386, 467, 934, 1351, 2702, 3269, 3281, 6538, 6562, 7939, 15878, 22967, 45934, 55573, 90131, 111146, 180262, 630917, 1261834, 1532227, 3064454, 10725589, 21451178]

約数ペア:

[(1, 21451178), (2, 10725589), (7, 3064454), (14, 1532227), (17, 1261834), (34, 630917), (119, 180262), (193, 111146), (238, 90131), (386, 55573), (467, 45934), (934, 22967), (1351, 15878), (2702, 7939), (3269, 6562), (3281, 6538)]