21578570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1307}}^1$

素因数の和:1454

約数の個数: 32

約数和(自身を含む): 42190848

約数和(自身を除く): 20612278

約数列:

[1, 2, 5, 10, 13, 26, 65, 127, 130, 254, 635, 1270, 1307, 1651, 2614, 3302, 6535, 8255, 13070, 16510, 16991, 33982, 84955, 165989, 169910, 331978, 829945, 1659890, 2157857, 4315714, 10789285, 21578570]

約数ペア:

[(1, 21578570), (2, 10789285), (5, 4315714), (10, 2157857), (13, 1659890), (26, 829945), (65, 331978), (127, 169910), (130, 165989), (254, 84955), (635, 33982), (1270, 16991), (1307, 16510), (1651, 13070), (2614, 8255), (3302, 6535)]