217428289

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{503}}^1\times {\mathrm{811}}^1$

素因数の和:1368

約数の個数: 16

約数和(自身を含む): 240637824

約数和(自身を除く): 23209535

約数列:

[1, 13, 41, 503, 533, 811, 6539, 10543, 20623, 33251, 268099, 407933, 432263, 5303129, 16725253, 217428289]

約数ペア:

[(1, 217428289), (13, 16725253), (41, 5303129), (503, 432263), (533, 407933), (811, 268099), (6539, 33251), (10543, 20623)]