19876325

素因数分解:

$5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2143}}^1$

素因数の和:2213

約数の個数: 24

約数和(自身を含む): 28712448

約数和(自身を除く): 8836123

約数列:

[1, 5, 7, 25, 35, 53, 175, 265, 371, 1325, 1855, 2143, 9275, 10715, 15001, 53575, 75005, 113579, 375025, 567895, 795053, 2839475, 3975265, 19876325]

約数ペア:

[(1, 19876325), (5, 3975265), (7, 2839475), (25, 795053), (35, 567895), (53, 375025), (175, 113579), (265, 75005), (371, 53575), (1325, 15001), (1855, 10715), (2143, 9275)]