20123621854

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{645443}}^1$

素因数の和:645600

約数の個数: 32

約数和(自身を含む): 36805798656

約数和(自身を除く): 16682176802

約数列:

[1, 2, 7, 14, 17, 34, 119, 131, 238, 262, 917, 1834, 2227, 4454, 15589, 31178, 645443, 1290886, 4518101, 9036202, 10972531, 21945062, 76807717, 84553033, 153615434, 169106066, 591871231, 1183742462, 1437401561, 2874803122, 10061810927, 20123621854]

約数ペア:

[(1, 20123621854), (2, 10061810927), (7, 2874803122), (14, 1437401561), (17, 1183742462), (34, 591871231), (119, 169106066), (131, 153615434), (238, 84553033), (262, 76807717), (917, 21945062), (1834, 10972531), (2227, 9036202), (4454, 4518101), (15589, 1290886), (31178, 645443)]