21301432

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{397}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 42267600

約数和(自身を除く): 20966168

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 353, 397, 706, 794, 1412, 1588, 2824, 3176, 6707, 7543, 13414, 15086, 26828, 30172, 53656, 60344, 140141, 280282, 560564, 1121128, 2662679, 5325358, 10650716, 21301432]

約数ペア:

[(1, 21301432), (2, 10650716), (4, 5325358), (8, 2662679), (19, 1121128), (38, 560564), (76, 280282), (152, 140141), (353, 60344), (397, 53656), (706, 30172), (794, 26828), (1412, 15086), (1588, 13414), (2824, 7543), (3176, 6707)]