21410872

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20123}}^1$

素因数の和:20155

約数の個数: 32

約数和(自身を含む): 48297600

約数和(自身を除く): 26886728

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 20123, 40246, 80492, 140861, 160984, 281722, 382337, 563444, 764674, 1126888, 1529348, 2676359, 3058696, 5352718, 10705436, 21410872]

約数ペア:

[(1, 21410872), (2, 10705436), (4, 5352718), (7, 3058696), (8, 2676359), (14, 1529348), (19, 1126888), (28, 764674), (38, 563444), (56, 382337), (76, 281722), (133, 160984), (152, 140861), (266, 80492), (532, 40246), (1064, 20123)]