20563395

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12577}}^1$

素因数の和:12694

約数の個数: 16

約数和(自身を含む): 33205920

約数和(自身を除く): 12642525

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 12577, 37731, 62885, 188655, 1370893, 4112679, 6854465, 20563395]

約数ペア:

[(1, 20563395), (3, 6854465), (5, 4112679), (15, 1370893), (109, 188655), (327, 62885), (545, 37731), (1635, 12577)]