21839415

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{111997}}^1$

素因数の和:112018

約数の個数: 16

約数和(自身を含む): 37631328

約数和(自身を除く): 15791913

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 111997, 335991, 559985, 1455961, 1679955, 4367883, 7279805, 21839415]

約数ペア:

[(1, 21839415), (3, 7279805), (5, 4367883), (13, 1679955), (15, 1455961), (39, 559985), (65, 335991), (195, 111997)]