21004996

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{2999}}^1$

素因数の和:3123

約数の個数: 24

約数和(自身を含む): 39312000

約数和(自身を除く): 18307004

約数列:

[1, 2, 4, 17, 34, 68, 103, 206, 412, 1751, 2999, 3502, 5998, 7004, 11996, 50983, 101966, 203932, 308897, 617794, 1235588, 5251249, 10502498, 21004996]

約数ペア:

[(1, 21004996), (2, 10502498), (4, 5251249), (17, 1235588), (34, 617794), (68, 308897), (103, 203932), (206, 101966), (412, 50983), (1751, 11996), (2999, 7004), (3502, 5998)]