21185369

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 23384064

約数和(自身を除く): 2198695

約数列:

[1, 23, 31, 43, 691, 713, 989, 1333, 15893, 21421, 29713, 30659, 492683, 683399, 921103, 21185369]

約数ペア:

[(1, 21185369), (23, 921103), (31, 683399), (43, 492683), (691, 30659), (713, 29713), (989, 21421), (1333, 15893)]