21348769

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:448

約数の個数: 16

約数和(自身を含む): 23767744

約数和(自身を除く): 2418975

約数列:

[1, 13, 43, 181, 211, 559, 2353, 2743, 7783, 9073, 38191, 101179, 117949, 496483, 1642213, 21348769]

約数ペア:

[(1, 21348769), (13, 1642213), (43, 496483), (181, 117949), (211, 101179), (559, 38191), (2353, 9073), (2743, 7783)]