21493039775

素因数分解:

$5^2\times {\mathrm{199}}^1\times {\mathrm{1783}}^1\times {\mathrm{2423}}^1$

素因数の和:4415

約数の個数: 24

約数和(自身を含む): 26811379200

約数和(自身を除く): 5318339425

約数列:

[1, 5, 25, 199, 995, 1783, 2423, 4975, 8915, 12115, 44575, 60575, 354817, 482177, 1774085, 2410885, 4320209, 8870425, 12054425, 21601045, 108005225, 859721591, 4298607955, 21493039775]

約数ペア:

[(1, 21493039775), (5, 4298607955), (25, 859721591), (199, 108005225), (995, 21601045), (1783, 12054425), (2423, 8870425), (4975, 4320209), (8915, 2410885), (12115, 1774085), (44575, 482177), (60575, 354817)]