21238406

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89237}}^1$

素因数の和:89263

約数の個数: 16

約数和(自身を含む): 38550816

約数和(自身を除く): 17312410

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 89237, 178474, 624659, 1249318, 1517029, 3034058, 10619203, 21238406]

約数ペア:

[(1, 21238406), (2, 10619203), (7, 3034058), (14, 1517029), (17, 1249318), (34, 624659), (119, 178474), (238, 89237)]