21428935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2803}}^1$

素因数の和:2958

約数の個数: 16

約数和(自身を含む): 28264320

約数和(自身を除く): 6835385

約数列:

[1, 5, 11, 55, 139, 695, 1529, 2803, 7645, 14015, 30833, 154165, 389617, 1948085, 4285787, 21428935]

約数ペア:

[(1, 21428935), (5, 4285787), (11, 1948085), (55, 389617), (139, 154165), (695, 30833), (1529, 14015), (2803, 7645)]