21552228

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 56565600

約数和(自身を除く): 35013372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 73, 118, 139, 146, 177, 219, 236, 278, 292, 354, 417, 438, 531, 556, 657, 708, 834, 876, 1062, 1251, 1314, 1668, 2124, 2502, 2628, 4307, 5004, 8201, 8614, 10147, 12921, 16402, 17228, 20294, 24603, 25842, 30441, 32804, 38763, 40588, 49206, 51684, 60882, 73809, 77526, 91323, 98412, 121764, 147618, 155052, 182646, 295236, 365292, 598673, 1197346, 1796019, 2394692, 3592038, 5388057, 7184076, 10776114, 21552228]

約数ペア:

[(1, 21552228), (2, 10776114), (3, 7184076), (4, 5388057), (6, 3592038), (9, 2394692), (12, 1796019), (18, 1197346), (36, 598673), (59, 365292), (73, 295236), (118, 182646), (139, 155052), (146, 147618), (177, 121764), (219, 98412), (236, 91323), (278, 77526), (292, 73809), (354, 60882), (417, 51684), (438, 49206), (531, 40588), (556, 38763), (657, 32804), (708, 30441), (834, 25842), (876, 24603), (1062, 20294), (1251, 17228), (1314, 16402), (1668, 12921), (2124, 10147), (2502, 8614), (2628, 8201), (4307, 5004)]