21977494

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{142711}}^1$

素因数の和:142731

約数の個数: 16

約数和(自身を含む): 41101056

約数和(自身を除く): 19123562

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 142711, 285422, 998977, 1569821, 1997954, 3139642, 10988747, 21977494]

約数ペア:

[(1, 21977494), (2, 10988747), (7, 3139642), (11, 1997954), (14, 1569821), (22, 998977), (77, 285422), (154, 142711)]