20921912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{237749}}^1$

素因数の和:237766

約数の個数: 16

約数和(自身を含む): 42795000

約数和(自身を除く): 21873088

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 237749, 475498, 950996, 1901992, 2615239, 5230478, 10460956, 20921912]

約数ペア:

[(1, 20921912), (2, 10460956), (4, 5230478), (8, 2615239), (11, 1901992), (22, 950996), (44, 475498), (88, 237749)]