21829305

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 14113095

約数列:

[1, 3, 5, 15, 71, 103, 199, 213, 309, 355, 515, 597, 995, 1065, 1545, 2985, 7313, 14129, 20497, 21939, 36565, 42387, 61491, 70645, 102485, 109695, 211935, 307455, 1455287, 4365861, 7276435, 21829305]

約数ペア:

[(1, 21829305), (3, 7276435), (5, 4365861), (15, 1455287), (71, 307455), (103, 211935), (199, 109695), (213, 102485), (309, 70645), (355, 61491), (515, 42387), (597, 36565), (995, 21939), (1065, 20497), (1545, 14129), (2985, 7313)]