20321235

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{673}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 39113568

約数和(自身を除く): 18792333

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 61, 99, 165, 183, 305, 495, 549, 671, 673, 915, 2013, 2019, 2745, 3355, 3365, 6039, 6057, 7403, 10065, 10095, 22209, 30195, 30285, 37015, 41053, 66627, 111045, 123159, 205265, 333135, 369477, 451583, 615795, 1354749, 1847385, 2257915, 4064247, 6773745, 20321235]

約数ペア:

[(1, 20321235), (3, 6773745), (5, 4064247), (9, 2257915), (11, 1847385), (15, 1354749), (33, 615795), (45, 451583), (55, 369477), (61, 333135), (99, 205265), (165, 123159), (183, 111045), (305, 66627), (495, 41053), (549, 37015), (671, 30285), (673, 30195), (915, 22209), (2013, 10095), (2019, 10065), (2745, 7403), (3355, 6057), (3365, 6039)]