21803881

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1487}}^1$

素因数の和:1572

約数の個数: 16

約数和(自身を含む): 25141248

約数和(自身を除く): 3337367

約数列:

[1, 11, 31, 43, 341, 473, 1333, 1487, 14663, 16357, 46097, 63941, 507067, 703351, 1982171, 21803881]

約数ペア:

[(1, 21803881), (11, 1982171), (31, 703351), (43, 507067), (341, 63941), (473, 46097), (1333, 16357), (1487, 14663)]