21109635

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^2\times {\mathrm{167}}^1$

素因数の和:284

約数の個数: 36

約数和(自身を含む): 37516752

約数和(自身を除く): 16407117

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 167, 265, 477, 501, 795, 835, 1503, 2385, 2505, 2809, 7515, 8427, 8851, 14045, 25281, 26553, 42135, 44255, 79659, 126405, 132765, 398295, 469103, 1407309, 2345515, 4221927, 7036545, 21109635]

約数ペア:

[(1, 21109635), (3, 7036545), (5, 4221927), (9, 2345515), (15, 1407309), (45, 469103), (53, 398295), (159, 132765), (167, 126405), (265, 79659), (477, 44255), (501, 42135), (795, 26553), (835, 25281), (1503, 14045), (2385, 8851), (2505, 8427), (2809, 7515)]