21314440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76123}}^1$

素因数の和:76141

約数の個数: 32

約数和(自身を含む): 54809280

約数和(自身を除く): 33494840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76123, 152246, 304492, 380615, 532861, 608984, 761230, 1065722, 1522460, 2131444, 2664305, 3044920, 4262888, 5328610, 10657220, 21314440]

約数ペア:

[(1, 21314440), (2, 10657220), (4, 5328610), (5, 4262888), (7, 3044920), (8, 2664305), (10, 2131444), (14, 1522460), (20, 1065722), (28, 761230), (35, 608984), (40, 532861), (56, 380615), (70, 304492), (140, 152246), (280, 76123)]