217514984

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{4549}}^1$

素因数の和:4737

約数の個数: 32

約数和(自身を含む): 420420000

約数和(自身を除く): 202905016

約数列:

[1, 2, 4, 8, 43, 86, 139, 172, 278, 344, 556, 1112, 4549, 5977, 9098, 11954, 18196, 23908, 36392, 47816, 195607, 391214, 632311, 782428, 1264622, 1564856, 2529244, 5058488, 27189373, 54378746, 108757492, 217514984]

約数ペア:

[(1, 217514984), (2, 108757492), (4, 54378746), (8, 27189373), (43, 5058488), (86, 2529244), (139, 1564856), (172, 1264622), (278, 782428), (344, 632311), (556, 391214), (1112, 195607), (4549, 47816), (5977, 36392), (9098, 23908), (11954, 18196)]