19961715

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 33422400

約数和(自身を除く): 13460685

約数列:

[1, 3, 5, 15, 29, 87, 109, 145, 327, 421, 435, 545, 1263, 1635, 2105, 3161, 6315, 9483, 12209, 15805, 36627, 45889, 47415, 61045, 137667, 183135, 229445, 688335, 1330781, 3992343, 6653905, 19961715]

約数ペア:

[(1, 19961715), (3, 6653905), (5, 3992343), (15, 1330781), (29, 688335), (87, 229445), (109, 183135), (145, 137667), (327, 61045), (421, 47415), (435, 45889), (545, 36627), (1263, 15805), (1635, 12209), (2105, 9483), (3161, 6315)]