21348677

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 25411584

約数和(自身を除く): 4062907

約数列:

[1, 7, 31, 131, 217, 751, 917, 4061, 5257, 23281, 28427, 98381, 162967, 688667, 3049811, 21348677]

約数ペア:

[(1, 21348677), (7, 3049811), (31, 688667), (131, 162967), (217, 98381), (751, 28427), (917, 23281), (4061, 5257)]