21050743

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{683}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 26667792

約数和(自身を除く): 5617049

約数列:

[1, 7, 17, 37, 49, 119, 259, 629, 683, 833, 1813, 4403, 4781, 11611, 25271, 30821, 33467, 81277, 176897, 429607, 568939, 1238279, 3007249, 21050743]

約数ペア:

[(1, 21050743), (7, 3007249), (17, 1238279), (37, 568939), (49, 429607), (119, 176897), (259, 81277), (629, 33467), (683, 30821), (833, 25271), (1813, 11611), (4403, 4781)]