21192710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1619}}^1$

素因数の和:1661

約数の個数: 64

約数和(自身を含む): 50388480

約数和(自身を除く): 29195770

約数列:

[1, 2, 5, 7, 10, 11, 14, 17, 22, 34, 35, 55, 70, 77, 85, 110, 119, 154, 170, 187, 238, 374, 385, 595, 770, 935, 1190, 1309, 1619, 1870, 2618, 3238, 6545, 8095, 11333, 13090, 16190, 17809, 22666, 27523, 35618, 55046, 56665, 89045, 113330, 124663, 137615, 178090, 192661, 249326, 275230, 302753, 385322, 605506, 623315, 963305, 1246630, 1513765, 1926610, 2119271, 3027530, 4238542, 10596355, 21192710]

約数ペア:

[(1, 21192710), (2, 10596355), (5, 4238542), (7, 3027530), (10, 2119271), (11, 1926610), (14, 1513765), (17, 1246630), (22, 963305), (34, 623315), (35, 605506), (55, 385322), (70, 302753), (77, 275230), (85, 249326), (110, 192661), (119, 178090), (154, 137615), (170, 124663), (187, 113330), (238, 89045), (374, 56665), (385, 55046), (595, 35618), (770, 27523), (935, 22666), (1190, 17809), (1309, 16190), (1619, 13090), (1870, 11333), (2618, 8095), (3238, 6545)]