21481229

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14683}}^1$

素因数の和:14720

約数の個数: 16

約数和(自身を含む): 28193280

約数和(自身を除く): 6712051

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14683, 102781, 161513, 278977, 1130591, 1952839, 3068747, 21481229]

約数ペア:

[(1, 21481229), (7, 3068747), (11, 1952839), (19, 1130591), (77, 278977), (133, 161513), (209, 102781), (1463, 14683)]