20193201

素因数分解:

$3^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1277}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 33493824

約数和(自身を除く): 13300623

約数列:

[1, 3, 7, 9, 21, 63, 251, 753, 1277, 1757, 2259, 3831, 5271, 8939, 11493, 15813, 26817, 80451, 320527, 961581, 2243689, 2884743, 6731067, 20193201]

約数ペア:

[(1, 20193201), (3, 6731067), (7, 2884743), (9, 2243689), (21, 961581), (63, 320527), (251, 80451), (753, 26817), (1277, 15813), (1757, 11493), (2259, 8939), (3831, 5271)]