20658378

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^2$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 45934560

約数和(自身を除く): 25276182

約数列:

[1, 2, 3, 6, 13, 26, 39, 59, 67, 78, 118, 134, 177, 201, 354, 402, 767, 871, 1534, 1742, 2301, 2613, 3953, 4489, 4602, 5226, 7906, 8978, 11859, 13467, 23718, 26934, 51389, 58357, 102778, 116714, 154167, 175071, 264851, 308334, 350142, 529702, 794553, 1589106, 3443063, 6886126, 10329189, 20658378]

約数ペア:

[(1, 20658378), (2, 10329189), (3, 6886126), (6, 3443063), (13, 1589106), (26, 794553), (39, 529702), (59, 350142), (67, 308334), (78, 264851), (118, 175071), (134, 154167), (177, 116714), (201, 102778), (354, 58357), (402, 51389), (767, 26934), (871, 23718), (1534, 13467), (1742, 11859), (2301, 8978), (2613, 7906), (3953, 5226), (4489, 4602)]