31721613

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2591}}^1$

素因数の和:2665

約数の個数: 32

約数和(自身を含む): 53747712

約数和(自身を除く): 22026099

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 159, 231, 371, 583, 1113, 1749, 2591, 4081, 7773, 12243, 18137, 28501, 54411, 85503, 137323, 199507, 411969, 598521, 961261, 1510553, 2883783, 4531659, 10573871, 31721613]

約数ペア:

[(1, 31721613), (3, 10573871), (7, 4531659), (11, 2883783), (21, 1510553), (33, 961261), (53, 598521), (77, 411969), (159, 199507), (231, 137323), (371, 85503), (583, 54411), (1113, 28501), (1749, 18137), (2591, 12243), (4081, 7773)]