21030579

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{359}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 31898880

約数和(自身を除く): 10868301

約数列:

[1, 3, 9, 23, 69, 207, 283, 359, 849, 1077, 2547, 3231, 6509, 8257, 19527, 24771, 58581, 74313, 101597, 304791, 914373, 2336731, 7010193, 21030579]

約数ペア:

[(1, 21030579), (3, 7010193), (9, 2336731), (23, 914373), (69, 304791), (207, 101597), (283, 74313), (359, 58581), (849, 24771), (1077, 19527), (2547, 8257), (3231, 6509)]