21937839

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13567}}^1$

素因数の和:13595

約数の個数: 24

約数和(自身を含む): 37122048

約数和(自身を除く): 15184209

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13567, 40701, 94969, 149237, 284907, 447711, 664783, 1044659, 1994349, 3133977, 7312613, 21937839]

約数ペア:

[(1, 21937839), (3, 7312613), (7, 3133977), (11, 1994349), (21, 1044659), (33, 664783), (49, 447711), (77, 284907), (147, 149237), (231, 94969), (539, 40701), (1617, 13567)]