21359260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{727}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 48799296

約数和(自身を除く): 27440036

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 727, 1130, 1454, 1469, 2260, 2908, 2938, 3635, 5876, 7270, 7345, 9451, 14540, 14690, 18902, 29380, 37804, 47255, 82151, 94510, 164302, 189020, 328604, 410755, 821510, 1067963, 1643020, 2135926, 4271852, 5339815, 10679630, 21359260]

約数ペア:

[(1, 21359260), (2, 10679630), (4, 5339815), (5, 4271852), (10, 2135926), (13, 1643020), (20, 1067963), (26, 821510), (52, 410755), (65, 328604), (113, 189020), (130, 164302), (226, 94510), (260, 82151), (452, 47255), (565, 37804), (727, 29380), (1130, 18902), (1454, 14690), (1469, 14540), (2260, 9451), (2908, 7345), (2938, 7270), (3635, 5876)]