20617190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{1549}}^1$

素因数の和:1589

約数の個数: 32

約数和(自身を含む): 40845600

約数和(自身を除く): 20228410

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 1331, 1549, 2662, 3098, 6655, 7745, 13310, 15490, 17039, 34078, 85195, 170390, 187429, 374858, 937145, 1874290, 2061719, 4123438, 10308595, 20617190]

約数ペア:

[(1, 20617190), (2, 10308595), (5, 4123438), (10, 2061719), (11, 1874290), (22, 937145), (55, 374858), (110, 187429), (121, 170390), (242, 85195), (605, 34078), (1210, 17039), (1331, 15490), (1549, 13310), (2662, 7745), (3098, 6655)]