20407786

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4513}}^1$

素因数の和:4558

約数の個数: 32

約数和(自身を含む): 39000960

約数和(自身を除く): 18593174

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 119, 133, 238, 266, 323, 646, 2261, 4513, 4522, 9026, 31591, 63182, 76721, 85747, 153442, 171494, 537047, 600229, 1074094, 1200458, 1457699, 2915398, 10203893, 20407786]

約数ペア:

[(1, 20407786), (2, 10203893), (7, 2915398), (14, 1457699), (17, 1200458), (19, 1074094), (34, 600229), (38, 537047), (119, 171494), (133, 153442), (238, 85747), (266, 76721), (323, 63182), (646, 31591), (2261, 9026), (4513, 4522)]