217905123

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1\times {\mathrm{2677}}^1$

素因数の和:3354

約数の個数: 16

約数和(自身を含む): 297879296

約数和(自身を除く): 79974173

約数列:

[1, 3, 43, 129, 631, 1893, 2677, 8031, 27133, 81399, 115111, 345333, 1689187, 5067561, 72635041, 217905123]

約数ペア:

[(1, 217905123), (3, 72635041), (43, 5067561), (129, 1689187), (631, 345333), (1893, 115111), (2677, 81399), (8031, 27133)]