21081290

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{35731}}^1$

素因数の和:35797

約数の個数: 16

約数和(自身を含む): 38590560

約数和(自身を除く): 17509270

約数列:

[1, 2, 5, 10, 59, 118, 295, 590, 35731, 71462, 178655, 357310, 2108129, 4216258, 10540645, 21081290]

約数ペア:

[(1, 21081290), (2, 10540645), (5, 4216258), (10, 2108129), (59, 357310), (118, 178655), (295, 71462), (590, 35731)]