21338385

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 35650560

約数和(自身を除く): 14312175

約数列:

[1, 3, 5, 15, 31, 93, 109, 155, 327, 421, 465, 545, 1263, 1635, 2105, 3379, 6315, 10137, 13051, 16895, 39153, 45889, 50685, 65255, 137667, 195765, 229445, 688335, 1422559, 4267677, 7112795, 21338385]

約数ペア:

[(1, 21338385), (3, 7112795), (5, 4267677), (15, 1422559), (31, 688335), (93, 229445), (109, 195765), (155, 137667), (327, 65255), (421, 50685), (465, 45889), (545, 39153), (1263, 16895), (1635, 13051), (2105, 10137), (3379, 6315)]