21900835

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1709}}^1$

素因数の和:1958

約数の個数: 16

約数和(自身を含む): 28810080

約数和(自身を除く): 6909245

約数列:

[1, 5, 11, 55, 233, 1165, 1709, 2563, 8545, 12815, 18799, 93995, 398197, 1990985, 4380167, 21900835]

約数ペア:

[(1, 21900835), (5, 4380167), (11, 1990985), (55, 398197), (233, 93995), (1165, 18799), (1709, 12815), (2563, 8545)]