21081214

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{373}}^1$

素因数の和:760

約数の個数: 32

約数和(自身を含む): 39638016

約数和(自身を除く): 18556802

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 367, 373, 734, 746, 2569, 2611, 4037, 4103, 5138, 5222, 8074, 8206, 28259, 28721, 56518, 57442, 136891, 273782, 958237, 1505801, 1916474, 3011602, 10540607, 21081214]

約数ペア:

[(1, 21081214), (2, 10540607), (7, 3011602), (11, 1916474), (14, 1505801), (22, 958237), (77, 273782), (154, 136891), (367, 57442), (373, 56518), (734, 28721), (746, 28259), (2569, 8206), (2611, 8074), (4037, 5222), (4103, 5138)]