216196991

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{647}}^1$

素因数の和:1118

約数の個数: 16

約数和(自身を含む): 233798400

約数和(自身を除く): 17601409

約数列:

[1, 19, 43, 409, 647, 817, 7771, 12293, 17587, 27821, 264623, 334153, 528599, 5027837, 11378789, 216196991]

約数ペア:

[(1, 216196991), (19, 11378789), (43, 5027837), (409, 528599), (647, 334153), (817, 264623), (7771, 27821), (12293, 17587)]