20838405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{198461}}^1$

素因数の和:198476

約数の個数: 16

約数和(自身を含む): 38104704

約数和(自身を除く): 17266299

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 198461, 595383, 992305, 1389227, 2976915, 4167681, 6946135, 20838405]

約数ペア:

[(1, 20838405), (3, 6946135), (5, 4167681), (7, 2976915), (15, 1389227), (21, 992305), (35, 595383), (105, 198461)]