215369231

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{2857}}^1$

素因数の和:2975

約数の個数: 24

約数和(自身を含む): 273682080

約数和(自身を除く): 58312849

約数列:

[1, 7, 11, 77, 89, 121, 623, 847, 979, 2857, 6853, 10769, 19999, 31427, 75383, 219989, 254273, 345697, 1779911, 2419879, 2797003, 19579021, 30767033, 215369231]

約数ペア:

[(1, 215369231), (7, 30767033), (11, 19579021), (77, 2797003), (89, 2419879), (121, 1779911), (623, 345697), (847, 254273), (979, 219989), (2857, 75383), (6853, 31427), (10769, 19999)]