209156915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 280247040

約数和(自身を除く): 71090125

約数列:

[1, 5, 11, 55, 67, 211, 269, 335, 737, 1055, 1345, 2321, 2959, 3685, 11605, 14137, 14795, 18023, 56759, 70685, 90115, 155507, 198253, 283795, 624349, 777535, 991265, 3121745, 3802853, 19014265, 41831383, 209156915]

約数ペア:

[(1, 209156915), (5, 41831383), (11, 19014265), (55, 3802853), (67, 3121745), (211, 991265), (269, 777535), (335, 624349), (737, 283795), (1055, 198253), (1345, 155507), (2321, 90115), (2959, 70685), (3685, 56759), (11605, 18023), (14137, 14795)]