21242266

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{1297}}^1$

素因数の和:1749

約数の個数: 16

約数和(自身を含む): 33644160

約数和(自身を除く): 12401894

約数列:

[1, 2, 19, 38, 431, 862, 1297, 2594, 8189, 16378, 24643, 49286, 559007, 1118014, 10621133, 21242266]

約数ペア:

[(1, 21242266), (2, 10621133), (19, 1118014), (38, 559007), (431, 49286), (862, 24643), (1297, 16378), (2594, 8189)]