21000309547

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{827}}^1\times {\mathrm{26479}}^1$

素因数の和:27450

約数の個数: 16

約数和(自身を含む): 24205685760

約数和(自身を除く): 3205376213

約数列:

[1, 7, 137, 827, 959, 5789, 26479, 113299, 185353, 793093, 3627623, 21898133, 25393361, 153286931, 3000044221, 21000309547]

約数ペア:

[(1, 21000309547), (7, 3000044221), (137, 153286931), (827, 25393361), (959, 21898133), (5789, 3627623), (26479, 793093), (113299, 185353)]