21143577

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1889}}^1$

素因数の和:1953

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 14418663

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 1889, 3731, 5667, 11193, 13223, 24557, 39669, 73671, 77449, 171899, 232347, 515697, 542143, 1006837, 1626429, 3020511, 7047859, 21143577]

約数ペア:

[(1, 21143577), (3, 7047859), (7, 3020511), (13, 1626429), (21, 1006837), (39, 542143), (41, 515697), (91, 232347), (123, 171899), (273, 77449), (287, 73671), (533, 39669), (861, 24557), (1599, 13223), (1889, 11193), (3731, 5667)]