21090722

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7603}}^1$

素因数の和:7697

約数の個数: 16

約数和(自身を含む): 33761760

約数和(自身を除く): 12671038

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7603, 15206, 144457, 288914, 555019, 1110038, 10545361, 21090722]

約数ペア:

[(1, 21090722), (2, 10545361), (19, 1110038), (38, 555019), (73, 288914), (146, 144457), (1387, 15206), (2774, 7603)]