221263987

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{1217}}^1\times {\mathrm{1367}}^1$

素因数の和:2610

約数の個数: 16

約数和(自身を含む): 266595840

約数和(自身を除く): 45331853

約数列:

[1, 7, 19, 133, 1217, 1367, 8519, 9569, 23123, 25973, 161861, 181811, 1663639, 11645473, 31609141, 221263987]

約数ペア:

[(1, 221263987), (7, 31609141), (19, 11645473), (133, 1663639), (1217, 181811), (1367, 161861), (8519, 25973), (9569, 23123)]