19815568

素因数分解:

$2^4\times {\mathrm{1021}}^1\times {\mathrm{1213}}^1$

素因数の和:2242

約数の個数: 20

約数和(自身を含む): 38461948

約数和(自身を除く): 18646380

約数列:

[1, 2, 4, 8, 16, 1021, 1213, 2042, 2426, 4084, 4852, 8168, 9704, 16336, 19408, 1238473, 2476946, 4953892, 9907784, 19815568]

約数ペア:

[(1, 19815568), (2, 9907784), (4, 4953892), (8, 2476946), (16, 1238473), (1021, 19408), (1213, 16336), (2042, 9704), (2426, 8168), (4084, 4852)]