21320697

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{1787}}^1$

素因数の和:1928

約数の個数: 16

約数和(自身を含む): 29437632

約数和(自身を除く): 8116935

約数列:

[1, 3, 41, 97, 123, 291, 1787, 3977, 5361, 11931, 73267, 173339, 219801, 520017, 7106899, 21320697]

約数ペア:

[(1, 21320697), (3, 7106899), (41, 520017), (97, 219801), (123, 173339), (291, 73267), (1787, 11931), (3977, 5361)]