21907035

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16787}}^1$

素因数の和:16827

約数の個数: 24

約数和(自身を含む): 39283920

約数和(自身を除く): 17376885

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16787, 50361, 83935, 151083, 251805, 486823, 755415, 1460469, 2434115, 4381407, 7302345, 21907035]

約数ペア:

[(1, 21907035), (3, 7302345), (5, 4381407), (9, 2434115), (15, 1460469), (29, 755415), (45, 486823), (87, 251805), (145, 151083), (261, 83935), (435, 50361), (1305, 16787)]