21593019

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13243461

約数列:

[1, 3, 7, 21, 31, 41, 93, 123, 217, 287, 651, 809, 861, 1271, 2427, 3813, 5663, 8897, 16989, 25079, 26691, 33169, 75237, 99507, 175553, 232183, 526659, 696549, 1028239, 3084717, 7197673, 21593019]

約数ペア:

[(1, 21593019), (3, 7197673), (7, 3084717), (21, 1028239), (31, 696549), (41, 526659), (93, 232183), (123, 175553), (217, 99507), (287, 75237), (651, 33169), (809, 26691), (861, 25079), (1271, 16989), (2427, 8897), (3813, 5663)]