20425878

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 29651562

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 137, 198, 251, 274, 297, 411, 502, 594, 753, 822, 1233, 1506, 1507, 2259, 2466, 2761, 3014, 3699, 4518, 4521, 5522, 6777, 7398, 8283, 9042, 13554, 13563, 16566, 24849, 27126, 34387, 40689, 49698, 68774, 74547, 81378, 103161, 149094, 206322, 309483, 378257, 618966, 756514, 928449, 1134771, 1856898, 2269542, 3404313, 6808626, 10212939, 20425878]

約数ペア:

[(1, 20425878), (2, 10212939), (3, 6808626), (6, 3404313), (9, 2269542), (11, 1856898), (18, 1134771), (22, 928449), (27, 756514), (33, 618966), (54, 378257), (66, 309483), (99, 206322), (137, 149094), (198, 103161), (251, 81378), (274, 74547), (297, 68774), (411, 49698), (502, 40689), (594, 34387), (753, 27126), (822, 24849), (1233, 16566), (1506, 13563), (1507, 13554), (2259, 9042), (2466, 8283), (2761, 7398), (3014, 6777), (3699, 5522), (4518, 4521)]