21000605798

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{552647521}}^1$

素因数の和:552647542

約数の個数: 8

約数和(自身を含む): 33158851320

約数和(自身を除く): 12158245522

約数列:

[1, 2, 19, 38, 552647521, 1105295042, 10500302899, 21000605798]

約数ペア:

[(1, 21000605798), (2, 10500302899), (19, 1105295042), (38, 552647521)]