21659547

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{359}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 37946880

約数和(自身を除く): 16287333

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 169, 221, 273, 357, 359, 507, 663, 1077, 1183, 1547, 2513, 2873, 3549, 4641, 4667, 6103, 7539, 8619, 14001, 18309, 20111, 32669, 42721, 60333, 60671, 79339, 98007, 128163, 182013, 238017, 424697, 555373, 1031407, 1274091, 1666119, 3094221, 7219849, 21659547]

約数ペア:

[(1, 21659547), (3, 7219849), (7, 3094221), (13, 1666119), (17, 1274091), (21, 1031407), (39, 555373), (51, 424697), (91, 238017), (119, 182013), (169, 128163), (221, 98007), (273, 79339), (357, 60671), (359, 60333), (507, 42721), (663, 32669), (1077, 20111), (1183, 18309), (1547, 14001), (2513, 8619), (2873, 7539), (3549, 6103), (4641, 4667)]