20438313987

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{74865619}}^1$

素因数の和:74865642

約数の個数: 16

約数和(自身を含む): 33539797760

約数和(自身を除く): 13101483773

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 74865619, 224596857, 524059333, 973253047, 1572177999, 2919759141, 6812771329, 20438313987]

約数ペア:

[(1, 20438313987), (3, 6812771329), (7, 2919759141), (13, 1572177999), (21, 973253047), (39, 524059333), (91, 224596857), (273, 74865619)]