20498835

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{991}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 37711872

約数和(自身を除く): 17213037

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 197, 591, 985, 991, 1379, 2955, 2973, 4137, 4955, 6895, 6937, 14865, 20685, 20811, 34685, 104055, 195227, 585681, 976135, 1366589, 2928405, 4099767, 6832945, 20498835]

約数ペア:

[(1, 20498835), (3, 6832945), (5, 4099767), (7, 2928405), (15, 1366589), (21, 976135), (35, 585681), (105, 195227), (197, 104055), (591, 34685), (985, 20811), (991, 20685), (1379, 14865), (2955, 6937), (2973, 6895), (4137, 4955)]