21527972

素因数分解:

$2^2\times {\mathrm{107}}^1\times {\mathrm{179}}^1\times {\mathrm{281}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 38374560

約数和(自身を除く): 16846588

約数列:

[1, 2, 4, 107, 179, 214, 281, 358, 428, 562, 716, 1124, 19153, 30067, 38306, 50299, 60134, 76612, 100598, 120268, 201196, 5381993, 10763986, 21527972]

約数ペア:

[(1, 21527972), (2, 10763986), (4, 5381993), (107, 201196), (179, 120268), (214, 100598), (281, 76612), (358, 60134), (428, 50299), (562, 38306), (716, 30067), (1124, 19153)]