18910605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9479}}^1$

素因数の和:9513

約数の個数: 32

約数和(自身を含む): 36403200

約数和(自身を除く): 17492595

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 9479, 28437, 47395, 66353, 142185, 180101, 199059, 331765, 540303, 900505, 995295, 1260707, 2701515, 3782121, 6303535, 18910605]

約数ペア:

[(1, 18910605), (3, 6303535), (5, 3782121), (7, 2701515), (15, 1260707), (19, 995295), (21, 900505), (35, 540303), (57, 331765), (95, 199059), (105, 180101), (133, 142185), (285, 66353), (399, 47395), (665, 28437), (1995, 9479)]