21817377

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{599}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 34560000

約数和(自身を除く): 12742623

約数列:

[1, 3, 9, 19, 27, 57, 71, 171, 213, 513, 599, 639, 1349, 1797, 1917, 4047, 5391, 11381, 12141, 16173, 34143, 36423, 42529, 102429, 127587, 307287, 382761, 808051, 1148283, 2424153, 7272459, 21817377]

約数ペア:

[(1, 21817377), (3, 7272459), (9, 2424153), (19, 1148283), (27, 808051), (57, 382761), (71, 307287), (171, 127587), (213, 102429), (513, 42529), (599, 36423), (639, 34143), (1349, 16173), (1797, 12141), (1917, 11381), (4047, 5391)]