20477646

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{491}}^1$

素因数の和:837

約数の個数: 48

約数和(自身を含む): 50963328

約数和(自身を除く): 30485682

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 331, 491, 662, 982, 993, 1473, 1986, 2317, 2946, 2979, 3437, 4419, 4634, 5958, 6874, 6951, 8838, 10311, 13902, 20622, 20853, 30933, 41706, 61866, 162521, 325042, 487563, 975126, 1137647, 1462689, 2275294, 2925378, 3412941, 6825882, 10238823, 20477646]

約数ペア:

[(1, 20477646), (2, 10238823), (3, 6825882), (6, 3412941), (7, 2925378), (9, 2275294), (14, 1462689), (18, 1137647), (21, 975126), (42, 487563), (63, 325042), (126, 162521), (331, 61866), (491, 41706), (662, 30933), (982, 20853), (993, 20622), (1473, 13902), (1986, 10311), (2317, 8838), (2946, 6951), (2979, 6874), (3437, 5958), (4419, 4634)]