20623278

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 47803392

約数和(自身を除く): 27180114

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 103, 151, 206, 221, 302, 309, 442, 453, 618, 663, 906, 1326, 1339, 1751, 1963, 2567, 2678, 3502, 3926, 4017, 5134, 5253, 5889, 7701, 8034, 10506, 11778, 15402, 15553, 22763, 31106, 33371, 45526, 46659, 66742, 68289, 93318, 100113, 136578, 200226, 202189, 264401, 404378, 528802, 606567, 793203, 1213134, 1586406, 3437213, 6874426, 10311639, 20623278]

約数ペア:

[(1, 20623278), (2, 10311639), (3, 6874426), (6, 3437213), (13, 1586406), (17, 1213134), (26, 793203), (34, 606567), (39, 528802), (51, 404378), (78, 264401), (102, 202189), (103, 200226), (151, 136578), (206, 100113), (221, 93318), (302, 68289), (309, 66742), (442, 46659), (453, 45526), (618, 33371), (663, 31106), (906, 22763), (1326, 15553), (1339, 15402), (1751, 11778), (1963, 10506), (2567, 8034), (2678, 7701), (3502, 5889), (3926, 5253), (4017, 5134)]