21922019

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1597}}^1$

素因数の和:1694

約数の個数: 16

約数和(自身を含む): 26232768

約数和(自身を除く): 4310749

約数列:

[1, 7, 37, 53, 259, 371, 1597, 1961, 11179, 13727, 59089, 84641, 413623, 592487, 3131717, 21922019]

約数ペア:

[(1, 21922019), (7, 3131717), (37, 592487), (53, 413623), (259, 84641), (371, 59089), (1597, 13727), (1961, 11179)]