21989968540

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{13246969}}^1$

素因数の和:13247061

約数の個数: 24

約数和(自身を含む): 46735310160

約数和(自身を除く): 24745341620

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 13246969, 26493938, 52987876, 66234845, 132469690, 264939380, 1099498427, 2198996854, 4397993708, 5497492135, 10994984270, 21989968540]

約数ペア:

[(1, 21989968540), (2, 10994984270), (4, 5497492135), (5, 4397993708), (10, 2198996854), (20, 1099498427), (83, 264939380), (166, 132469690), (332, 66234845), (415, 52987876), (830, 26493938), (1660, 13246969)]