19783736

素因数分解:

$2^3\times 7^1\times {\mathrm{401}}^1\times {\mathrm{881}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 42547680

約数和(自身を除く): 22763944

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 401, 802, 881, 1604, 1762, 2807, 3208, 3524, 5614, 6167, 7048, 11228, 12334, 22456, 24668, 49336, 353281, 706562, 1413124, 2472967, 2826248, 4945934, 9891868, 19783736]

約数ペア:

[(1, 19783736), (2, 9891868), (4, 4945934), (7, 2826248), (8, 2472967), (14, 1413124), (28, 706562), (56, 353281), (401, 49336), (802, 24668), (881, 22456), (1604, 12334), (1762, 11228), (2807, 7048), (3208, 6167), (3524, 5614)]