18935379

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{563}}^1$

素因数の和:707

約数の個数: 24

約数和(自身を含む): 28418832

約数和(自身を除く): 9483453

約数列:

[1, 3, 9, 37, 101, 111, 303, 333, 563, 909, 1689, 3737, 5067, 11211, 20831, 33633, 56863, 62493, 170589, 187479, 511767, 2103931, 6311793, 18935379]

約数ペア:

[(1, 18935379), (3, 6311793), (9, 2103931), (37, 511767), (101, 187479), (111, 170589), (303, 62493), (333, 56863), (563, 33633), (909, 20831), (1689, 11211), (3737, 5067)]