201780243

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{21211}}^1$

素因数の和:21375

約数の個数: 24

約数和(自身を含む): 335319296

約数和(自身を除く): 133539053

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 3171, 9513, 21211, 63633, 148477, 190899, 445431, 1336293, 3202861, 9608583, 22420027, 28825749, 67260081, 201780243]

約数ペア:

[(1, 201780243), (3, 67260081), (7, 28825749), (9, 22420027), (21, 9608583), (63, 3202861), (151, 1336293), (453, 445431), (1057, 190899), (1359, 148477), (3171, 63633), (9513, 21211)]