211399617

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{863}}^1$

素因数の和:1461

約数の個数: 32

約数和(自身を含む): 332107776

約数和(自身を除く): 120708159

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 571, 863, 1713, 2589, 6281, 7423, 9493, 11219, 18843, 22269, 28479, 33657, 81653, 123409, 244959, 370227, 492773, 1478319, 5420503, 6406049, 16261509, 19218147, 70466539, 211399617]

約数ペア:

[(1, 211399617), (3, 70466539), (11, 19218147), (13, 16261509), (33, 6406049), (39, 5420503), (143, 1478319), (429, 492773), (571, 370227), (863, 244959), (1713, 123409), (2589, 81653), (6281, 33657), (7423, 28479), (9493, 22269), (11219, 18843)]