21995402

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{76907}}^1$

素因数の和:76933

約数の個数: 16

約数和(自身を含む): 38761632

約数和(自身を除く): 16766230

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 76907, 153814, 845977, 999791, 1691954, 1999582, 10997701, 21995402]

約数ペア:

[(1, 21995402), (2, 10997701), (11, 1999582), (13, 1691954), (22, 999791), (26, 845977), (143, 153814), (286, 76907)]