16642940

素因数分解:

$2^2\times 5^1\times {\mathrm{857}}^1\times {\mathrm{971}}^1$

素因数の和:1837

約数の個数: 24

約数和(自身を含む): 35026992

約数和(自身を除く): 18384052

約数列:

[1, 2, 4, 5, 10, 20, 857, 971, 1714, 1942, 3428, 3884, 4285, 4855, 8570, 9710, 17140, 19420, 832147, 1664294, 3328588, 4160735, 8321470, 16642940]

約数ペア:

[(1, 16642940), (2, 8321470), (4, 4160735), (5, 3328588), (10, 1664294), (20, 832147), (857, 19420), (971, 17140), (1714, 9710), (1942, 8570), (3428, 4855), (3884, 4285)]