21768670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1663}}^1$

素因数の和:1705

約数の個数: 64

約数和(自身を含む): 51757056

約数和(自身を除く): 29988386

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, 1663, 1870, 2618, 3326, 6545, 8315, 11641, 13090, 16630, 18293, 23282, 28271, 36586, 56542, 58205, 91465, 116410, 128051, 141355, 182930, 197897, 256102, 282710, 310981, 395794, 621962, 640255, 989485, 1280510, 1554905, 1978970, 2176867, 3109810, 4353734, 10884335, 21768670]

約数ペア:

[(1, 21768670), (2, 10884335), (5, 4353734), (7, 3109810), (10, 2176867), (11, 1978970), (14, 1554905), (17, 1280510), (22, 989485), (34, 640255), (35, 621962), (55, 395794), (70, 310981), (77, 282710), (85, 256102), (110, 197897), (119, 182930), (154, 141355), (170, 128051), (187, 116410), (238, 91465), (374, 58205), (385, 56542), (595, 36586), (770, 28271), (935, 23282), (1190, 18293), (1309, 16630), (1663, 13090), (1870, 11641), (2618, 8315), (3326, 6545)]