21568206

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 29442354

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 47, 51, 66, 94, 102, 141, 187, 282, 374, 409, 517, 561, 799, 818, 1034, 1122, 1227, 1551, 1598, 2397, 2454, 3102, 4499, 4794, 6953, 8789, 8998, 13497, 13906, 17578, 19223, 20859, 26367, 26994, 38446, 41718, 52734, 57669, 76483, 115338, 152966, 211453, 229449, 326791, 422906, 458898, 634359, 653582, 980373, 1268718, 1960746, 3594701, 7189402, 10784103, 21568206]

約数ペア:

[(1, 21568206), (2, 10784103), (3, 7189402), (6, 3594701), (11, 1960746), (17, 1268718), (22, 980373), (33, 653582), (34, 634359), (47, 458898), (51, 422906), (66, 326791), (94, 229449), (102, 211453), (141, 152966), (187, 115338), (282, 76483), (374, 57669), (409, 52734), (517, 41718), (561, 38446), (799, 26994), (818, 26367), (1034, 20859), (1122, 19223), (1227, 17578), (1551, 13906), (1598, 13497), (2397, 8998), (2454, 8789), (3102, 6953), (4499, 4794)]