218310321

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{8291}}^1$

素因数の和:8492

約数の個数: 16

約数和(自身を含む): 297715968

約数和(自身を除く): 79405647

約数列:

[1, 3, 67, 131, 201, 393, 8291, 8777, 24873, 26331, 555497, 1086121, 1666491, 3258363, 72770107, 218310321]

約数ペア:

[(1, 218310321), (3, 72770107), (67, 3258363), (131, 1666491), (201, 1086121), (393, 555497), (8291, 26331), (8777, 24873)]