21273221590

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2971}}^1\times {\mathrm{10687}}^1$

素因数の和:13732

約数の個数: 32

約数和(自身を含む): 38880036864

約数和(自身を除く): 17606815274

約数列:

[1, 2, 5, 10, 67, 134, 335, 670, 2971, 5942, 10687, 14855, 21374, 29710, 53435, 106870, 199057, 398114, 716029, 995285, 1432058, 1990570, 3580145, 7160290, 31751077, 63502154, 158755385, 317510770, 2127322159, 4254644318, 10636610795, 21273221590]

約数ペア:

[(1, 21273221590), (2, 10636610795), (5, 4254644318), (10, 2127322159), (67, 317510770), (134, 158755385), (335, 63502154), (670, 31751077), (2971, 7160290), (5942, 3580145), (10687, 1990570), (14855, 1432058), (21374, 995285), (29710, 716029), (53435, 398114), (106870, 199057)]