207921693

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{521107}}^1$

素因数の和:521136

約数の個数: 16

約数和(自身を含む): 333509120

約数和(自身を除く): 125587427

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 521107, 1563321, 3647749, 9901033, 10943247, 29703099, 69307231, 207921693]

約数ペア:

[(1, 207921693), (3, 69307231), (7, 29703099), (19, 10943247), (21, 9901033), (57, 3647749), (133, 1563321), (399, 521107)]