20292748

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{109}}^2$

素因数の和:290

約数の個数: 36

約数和(自身を含む): 41632752

約数和(自身を除く): 21340004

約数列:

[1, 2, 4, 7, 14, 28, 61, 109, 122, 218, 244, 427, 436, 763, 854, 1526, 1708, 3052, 6649, 11881, 13298, 23762, 26596, 46543, 47524, 83167, 93086, 166334, 186172, 332668, 724741, 1449482, 2898964, 5073187, 10146374, 20292748]

約数ペア:

[(1, 20292748), (2, 10146374), (4, 5073187), (7, 2898964), (14, 1449482), (28, 724741), (61, 332668), (109, 186172), (122, 166334), (218, 93086), (244, 83167), (427, 47524), (436, 46543), (763, 26596), (854, 23762), (1526, 13298), (1708, 11881), (3052, 6649)]