20397806

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{977}}^1$

素因数の和:1076

約数の個数: 32

約数和(自身を含む): 36475488

約数和(自身を除く): 16077682

約数列:

[1, 2, 11, 13, 22, 26, 73, 143, 146, 286, 803, 949, 977, 1606, 1898, 1954, 10439, 10747, 12701, 20878, 21494, 25402, 71321, 139711, 142642, 279422, 784531, 927173, 1569062, 1854346, 10198903, 20397806]

約数ペア:

[(1, 20397806), (2, 10198903), (11, 1854346), (13, 1569062), (22, 927173), (26, 784531), (73, 279422), (143, 142642), (146, 139711), (286, 71321), (803, 25402), (949, 21494), (977, 20878), (1606, 12701), (1898, 10747), (1954, 10439)]