689471109

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{144271}}^1$

素因数の和:144342

約数の個数: 20

約数和(自身を含む): 1047414720

約数和(自身を除く): 357943611

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4779, 144271, 432813, 1298439, 3895317, 8511989, 11685951, 25535967, 76607901, 229823703, 689471109]

約数ペア:

[(1, 689471109), (3, 229823703), (9, 76607901), (27, 25535967), (59, 11685951), (81, 8511989), (177, 3895317), (531, 1298439), (1593, 432813), (4779, 144271)]