19947844

素因数分解:

$2^2\times 7^1\times {\mathrm{653}}^1\times {\mathrm{1091}}^1$

素因数の和:1755

約数の個数: 24

約数和(自身を含む): 39993408

約数和(自身を除く): 20045564

約数列:

[1, 2, 4, 7, 14, 28, 653, 1091, 1306, 2182, 2612, 4364, 4571, 7637, 9142, 15274, 18284, 30548, 712423, 1424846, 2849692, 4986961, 9973922, 19947844]

約数ペア:

[(1, 19947844), (2, 9973922), (4, 4986961), (7, 2849692), (14, 1424846), (28, 712423), (653, 30548), (1091, 18284), (1306, 15274), (2182, 9142), (2612, 7637), (4364, 4571)]