19115558

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 19591642

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 47, 77, 94, 133, 139, 154, 209, 266, 278, 329, 418, 517, 658, 893, 973, 1034, 1463, 1529, 1786, 1946, 2641, 2926, 3058, 3619, 5282, 6251, 6533, 7238, 9823, 10703, 12502, 13066, 18487, 19646, 21406, 29051, 36974, 45731, 58102, 68761, 71863, 91462, 124127, 137522, 143726, 203357, 248254, 406714, 503041, 868889, 1006082, 1365397, 1737778, 2730794, 9557779, 19115558]

約数ペア:

[(1, 19115558), (2, 9557779), (7, 2730794), (11, 1737778), (14, 1365397), (19, 1006082), (22, 868889), (38, 503041), (47, 406714), (77, 248254), (94, 203357), (133, 143726), (139, 137522), (154, 124127), (209, 91462), (266, 71863), (278, 68761), (329, 58102), (418, 45731), (517, 36974), (658, 29051), (893, 21406), (973, 19646), (1034, 18487), (1463, 13066), (1529, 12502), (1786, 10703), (1946, 9823), (2641, 7238), (2926, 6533), (3058, 6251), (3619, 5282)]