217248639

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{46993}}^1$

素因数の和:47086

約数の個数: 16

約数和(自身を含む): 306776832

約数和(自身を除く): 89528193

約数列:

[1, 3, 23, 67, 69, 201, 1541, 4623, 46993, 140979, 1080839, 3148531, 3242517, 9445593, 72416213, 217248639]

約数ペア:

[(1, 217248639), (3, 72416213), (23, 9445593), (67, 3242517), (69, 3148531), (201, 1080839), (1541, 140979), (4623, 46993)]