216912705417

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{409}}^1\times {\mathrm{829967}}^1$

素因数の和:830453

約数の個数: 24

約数和(自身を含む): 318508519680

約数和(自身を除く): 101595814263

約数列:

[1, 3, 9, 71, 213, 409, 639, 1227, 3681, 29039, 87117, 261351, 829967, 2489901, 7469703, 58927657, 176782971, 339456503, 530348913, 1018369509, 3055108527, 24101411713, 72304235139, 216912705417]

約数ペア:

[(1, 216912705417), (3, 72304235139), (9, 24101411713), (71, 3055108527), (213, 1018369509), (409, 530348913), (639, 339456503), (1227, 176782971), (3681, 58927657), (29039, 7469703), (87117, 2489901), (261351, 829967)]