281609217

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2129}}^1$

素因数の和:2235

約数の個数: 40

約数和(自身を含む): 445357440

約数和(自身を除く): 163748223

約数列:

[1, 3, 9, 23, 27, 69, 71, 81, 207, 213, 621, 639, 1633, 1863, 1917, 2129, 4899, 5751, 6387, 14697, 19161, 44091, 48967, 57483, 132273, 146901, 151159, 172449, 440703, 453477, 1322109, 1360431, 3476657, 3966327, 4081293, 10429971, 12243879, 31289913, 93869739, 281609217]

約数ペア:

[(1, 281609217), (3, 93869739), (9, 31289913), (23, 12243879), (27, 10429971), (69, 4081293), (71, 3966327), (81, 3476657), (207, 1360431), (213, 1322109), (621, 453477), (639, 440703), (1633, 172449), (1863, 151159), (1917, 146901), (2129, 132273), (4899, 57483), (5751, 48967), (6387, 44091), (14697, 19161)]