21419988

素因数分解:

$2^2\times 3^1\times {\mathrm{523}}^1\times {\mathrm{3413}}^1$

素因数の和:3943

約数の個数: 24

約数和(自身を含む): 50090208

約数和(自身を除く): 28670220

約数列:

[1, 2, 3, 4, 6, 12, 523, 1046, 1569, 2092, 3138, 3413, 6276, 6826, 10239, 13652, 20478, 40956, 1784999, 3569998, 5354997, 7139996, 10709994, 21419988]

約数ペア:

[(1, 21419988), (2, 10709994), (3, 7139996), (4, 5354997), (6, 3569998), (12, 1784999), (523, 40956), (1046, 20478), (1569, 13652), (2092, 10239), (3138, 6826), (3413, 6276)]