213974789

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{1913}}^1$

素因数の和:1997

約数の個数: 24

約数和(自身を含む): 266735040

約数和(自身を除く): 52760251

約数列:

[1, 7, 19, 29, 133, 203, 551, 841, 1913, 3857, 5887, 13391, 15979, 36347, 55477, 111853, 254429, 388339, 1054063, 1608833, 7378441, 11261831, 30567827, 213974789]

約数ペア:

[(1, 213974789), (7, 30567827), (19, 11261831), (29, 7378441), (133, 1608833), (203, 1054063), (551, 388339), (841, 254429), (1913, 111853), (3857, 55477), (5887, 36347), (13391, 15979)]