81728918

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{8999}}^1$

素因数の和:9259

約数の個数: 16

約数和(自身を含む): 129600000

約数和(自身を除く): 47871082

約数列:

[1, 2, 19, 38, 239, 478, 4541, 8999, 9082, 17998, 170981, 341962, 2150761, 4301522, 40864459, 81728918]

約数ペア:

[(1, 81728918), (2, 40864459), (19, 4301522), (38, 2150761), (239, 341962), (478, 170981), (4541, 17998), (8999, 9082)]