20933913

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6971}}^1$

素因数の和:7005

約数の個数: 32

約数和(自身を含む): 37481472

約数和(自身を除く): 16547559

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 6971, 20913, 48797, 76681, 90623, 146391, 230043, 271869, 536767, 634361, 996853, 1610301, 1903083, 2990559, 6977971, 20933913]

約数ペア:

[(1, 20933913), (3, 6977971), (7, 2990559), (11, 1903083), (13, 1610301), (21, 996853), (33, 634361), (39, 536767), (77, 271869), (91, 230043), (143, 146391), (231, 90623), (273, 76681), (429, 48797), (1001, 20913), (3003, 6971)]