21529096

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 41437080

約数和(自身を除く): 19907984

約数列:

[1, 2, 4, 8, 61, 122, 157, 244, 281, 314, 488, 562, 628, 1124, 1256, 2248, 9577, 17141, 19154, 34282, 38308, 44117, 68564, 76616, 88234, 137128, 176468, 352936, 2691137, 5382274, 10764548, 21529096]

約数ペア:

[(1, 21529096), (2, 10764548), (4, 5382274), (8, 2691137), (61, 352936), (122, 176468), (157, 137128), (244, 88234), (281, 76616), (314, 68564), (488, 44117), (562, 38308), (628, 34282), (1124, 19154), (1256, 17141), (2248, 9577)]