21905156785

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{10303}}^1$

素因数の和:10545

約数の個数: 32

約数和(自身を含む): 27402375168

約数和(自身を除く): 5497218383

約数列:

[1, 5, 53, 71, 113, 265, 355, 565, 3763, 5989, 8023, 10303, 18815, 29945, 40115, 51515, 425219, 546059, 731513, 1164239, 2126095, 2730295, 3657565, 5821195, 38770189, 61704667, 82660969, 193850945, 308523335, 413304845, 4381031357, 21905156785]

約数ペア:

[(1, 21905156785), (5, 4381031357), (53, 413304845), (71, 308523335), (113, 193850945), (265, 82660969), (355, 61704667), (565, 38770189), (3763, 5821195), (5989, 3657565), (8023, 2730295), (10303, 2126095), (18815, 1164239), (29945, 731513), (40115, 546059), (51515, 425219)]