213449795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 284739840

約数和(自身を除く): 71290045

約数列:

[1, 5, 13, 47, 65, 109, 235, 545, 611, 641, 1417, 3055, 3205, 5123, 7085, 8333, 25615, 30127, 41665, 66599, 69869, 150635, 332995, 349345, 391651, 908297, 1958255, 3283843, 4541485, 16419215, 42689959, 213449795]

約数ペア:

[(1, 213449795), (5, 42689959), (13, 16419215), (47, 4541485), (65, 3283843), (109, 1958255), (235, 908297), (545, 391651), (611, 349345), (641, 332995), (1417, 150635), (3055, 69869), (3205, 66599), (5123, 41665), (7085, 30127), (8333, 25615)]