21253992

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{12473}}^1$

素因数の和:12553

約数の個数: 32

約数和(自身を含む): 53887680

約数和(自身を除く): 32633688

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 12473, 24946, 37419, 49892, 74838, 99784, 149676, 299352, 885583, 1771166, 2656749, 3542332, 5313498, 7084664, 10626996, 21253992]

約数ペア:

[(1, 21253992), (2, 10626996), (3, 7084664), (4, 5313498), (6, 3542332), (8, 2656749), (12, 1771166), (24, 885583), (71, 299352), (142, 149676), (213, 99784), (284, 74838), (426, 49892), (568, 37419), (852, 24946), (1704, 12473)]