20479448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{569}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 42066000

約数和(自身を除く): 21586552

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 409, 569, 818, 1138, 1636, 2276, 3272, 4499, 4552, 6259, 8998, 12518, 17996, 25036, 35992, 50072, 232721, 465442, 930884, 1861768, 2559931, 5119862, 10239724, 20479448]

約数ペア:

[(1, 20479448), (2, 10239724), (4, 5119862), (8, 2559931), (11, 1861768), (22, 930884), (44, 465442), (88, 232721), (409, 50072), (569, 35992), (818, 25036), (1138, 17996), (1636, 12518), (2276, 8998), (3272, 6259), (4499, 4552)]