20791498

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1609}}^1$

素因数の和:1702

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 18157622

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 142, 182, 497, 923, 994, 1609, 1846, 3218, 6461, 11263, 12922, 20917, 22526, 41834, 114239, 146419, 228478, 292838, 799673, 1485107, 1599346, 2970214, 10395749, 20791498]

約数ペア:

[(1, 20791498), (2, 10395749), (7, 2970214), (13, 1599346), (14, 1485107), (26, 799673), (71, 292838), (91, 228478), (142, 146419), (182, 114239), (497, 41834), (923, 22526), (994, 20917), (1609, 12922), (1846, 11263), (3218, 6461)]