21161814

素因数分解:

$2^1\times 3^1\times {\mathrm{991}}^1\times {\mathrm{3559}}^1$

素因数の和:4555

約数の個数: 16

約数和(自身を含む): 42378240

約数和(自身を除く): 21216426

約数列:

[1, 2, 3, 6, 991, 1982, 2973, 3559, 5946, 7118, 10677, 21354, 3526969, 7053938, 10580907, 21161814]

約数ペア:

[(1, 21161814), (2, 10580907), (3, 7053938), (6, 3526969), (991, 21354), (1982, 10677), (2973, 7118), (3559, 5946)]