21038469

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 31021056

約数和(自身を除く): 9982587

約数列:

[1, 3, 17, 47, 51, 67, 131, 141, 201, 393, 799, 1139, 2227, 2397, 3149, 3417, 6157, 6681, 8777, 9447, 18471, 26331, 53533, 104669, 149209, 160599, 314007, 412519, 447627, 1237557, 7012823, 21038469]

約数ペア:

[(1, 21038469), (3, 7012823), (17, 1237557), (47, 447627), (51, 412519), (67, 314007), (131, 160599), (141, 149209), (201, 104669), (393, 53533), (799, 26331), (1139, 18471), (2227, 9447), (2397, 8777), (3149, 6681), (3417, 6157)]