20773928

素因数分解:

$2^3\times 7^1\times {\mathrm{409}}^1\times {\mathrm{907}}^1$

素因数の和:1329

約数の個数: 32

約数和(自身を含む): 44673600

約数和(自身を除く): 23899672

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 409, 818, 907, 1636, 1814, 2863, 3272, 3628, 5726, 6349, 7256, 11452, 12698, 22904, 25396, 50792, 370963, 741926, 1483852, 2596741, 2967704, 5193482, 10386964, 20773928]

約数ペア:

[(1, 20773928), (2, 10386964), (4, 5193482), (7, 2967704), (8, 2596741), (14, 1483852), (28, 741926), (56, 370963), (409, 50792), (818, 25396), (907, 22904), (1636, 12698), (1814, 11452), (2863, 7256), (3272, 6349), (3628, 5726)]