21130146

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:197

約数の個数: 80

約数和(自身を含む): 50808384

約数和(自身を除く): 29678238

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 53, 54, 69, 81, 106, 107, 138, 159, 162, 207, 214, 318, 321, 414, 477, 621, 642, 954, 963, 1219, 1242, 1431, 1863, 1926, 2438, 2461, 2862, 2889, 3657, 3726, 4293, 4922, 5671, 5778, 7314, 7383, 8586, 8667, 10971, 11342, 14766, 17013, 17334, 21942, 22149, 32913, 34026, 44298, 51039, 65826, 66447, 98739, 102078, 130433, 132894, 153117, 197478, 199341, 260866, 306234, 391299, 398682, 459351, 782598, 918702, 1173897, 2347794, 3521691, 7043382, 10565073, 21130146]

約数ペア:

[(1, 21130146), (2, 10565073), (3, 7043382), (6, 3521691), (9, 2347794), (18, 1173897), (23, 918702), (27, 782598), (46, 459351), (53, 398682), (54, 391299), (69, 306234), (81, 260866), (106, 199341), (107, 197478), (138, 153117), (159, 132894), (162, 130433), (207, 102078), (214, 98739), (318, 66447), (321, 65826), (414, 51039), (477, 44298), (621, 34026), (642, 32913), (954, 22149), (963, 21942), (1219, 17334), (1242, 17013), (1431, 14766), (1863, 11342), (1926, 10971), (2438, 8667), (2461, 8586), (2862, 7383), (2889, 7314), (3657, 5778), (3726, 5671), (4293, 4922)]