21051933

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{541}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 34341120

約数和(自身を除く): 13289187

約数列:

[1, 3, 7, 17, 21, 51, 109, 119, 327, 357, 541, 763, 1623, 1853, 2289, 3787, 5559, 9197, 11361, 12971, 27591, 38913, 58969, 64379, 176907, 193137, 412783, 1002473, 1238349, 3007419, 7017311, 21051933]

約数ペア:

[(1, 21051933), (3, 7017311), (7, 3007419), (17, 1238349), (21, 1002473), (51, 412783), (109, 193137), (119, 176907), (327, 64379), (357, 58969), (541, 38913), (763, 27591), (1623, 12971), (1853, 11361), (2289, 9197), (3787, 5559)]