256962021

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 370298880

約数和(自身を除く): 113336859

約数列:

[1, 3, 17, 51, 97, 127, 291, 381, 409, 1227, 1649, 2159, 4947, 6477, 6953, 12319, 20859, 36957, 39673, 51943, 119019, 155829, 209423, 628269, 674441, 883031, 2023323, 2649093, 5038471, 15115413, 85654007, 256962021]

約数ペア:

[(1, 256962021), (3, 85654007), (17, 15115413), (51, 5038471), (97, 2649093), (127, 2023323), (291, 883031), (381, 674441), (409, 628269), (1227, 209423), (1649, 155829), (2159, 119019), (4947, 51943), (6477, 39673), (6953, 36957), (12319, 20859)]