21471472

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{121997}}^1$

素因数の和:122016

約数の個数: 20

約数和(自身を含む): 45383256

約数和(自身を除く): 23911784

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 121997, 243994, 487988, 975976, 1341967, 1951952, 2683934, 5367868, 10735736, 21471472]

約数ペア:

[(1, 21471472), (2, 10735736), (4, 5367868), (8, 2683934), (11, 1951952), (16, 1341967), (22, 975976), (44, 487988), (88, 243994), (176, 121997)]