21996142

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{68311}}^1$

素因数の和:68343

約数の個数: 16

約数和(自身を含む): 39347712

約数和(自身を除く): 17351570

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 68311, 136622, 478177, 956354, 1571153, 3142306, 10998071, 21996142]

約数ペア:

[(1, 21996142), (2, 10998071), (7, 3142306), (14, 1571153), (23, 956354), (46, 478177), (161, 136622), (322, 68311)]