19654612

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{499}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 35420000

約数和(自身を除く): 15765388

約数列:

[1, 2, 4, 43, 86, 172, 229, 458, 499, 916, 998, 1996, 9847, 19694, 21457, 39388, 42914, 85828, 114271, 228542, 457084, 4913653, 9827306, 19654612]

約数ペア:

[(1, 19654612), (2, 9827306), (4, 4913653), (43, 457084), (86, 228542), (172, 114271), (229, 85828), (458, 42914), (499, 39388), (916, 21457), (998, 19694), (1996, 9847)]