21694880

素因数分解:

$2^5\times 5^1\times {\mathrm{135593}}^1$

素因数の和:135608

約数の個数: 24

約数和(自身を含む): 51254532

約数和(自身を除く): 29559652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 135593, 271186, 542372, 677965, 1084744, 1355930, 2169488, 2711860, 4338976, 5423720, 10847440, 21694880]

約数ペア:

[(1, 21694880), (2, 10847440), (4, 5423720), (5, 4338976), (8, 2711860), (10, 2169488), (16, 1355930), (20, 1084744), (32, 677965), (40, 542372), (80, 271186), (160, 135593)]