21705056

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{2347}}^1$

素因数の和:2391

約数の個数: 36

約数和(自身を含む): 45412668

約数和(自身を除く): 23707612

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 289, 544, 578, 1156, 2312, 2347, 4624, 4694, 9248, 9388, 18776, 37552, 39899, 75104, 79798, 159596, 319192, 638384, 678283, 1276768, 1356566, 2713132, 5426264, 10852528, 21705056]

約数ペア:

[(1, 21705056), (2, 10852528), (4, 5426264), (8, 2713132), (16, 1356566), (17, 1276768), (32, 678283), (34, 638384), (68, 319192), (136, 159596), (272, 79798), (289, 75104), (544, 39899), (578, 37552), (1156, 18776), (2312, 9388), (2347, 9248), (4624, 4694)]