20982065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7507}}^1$

素因数の和:7568

約数の個数: 16

約数和(自身を含む): 27749568

約数和(自身を除く): 6767503

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 7507, 37535, 97591, 322801, 487955, 1614005, 4196413, 20982065]

約数ペア:

[(1, 20982065), (5, 4196413), (13, 1614005), (43, 487955), (65, 322801), (215, 97591), (559, 37535), (2795, 7507)]