20278258

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1447}}^1$

素因数の和:1487

約数の個数: 48

約数和(自身を含む): 41598144

約数和(自身を除く): 21319886

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 77, 91, 98, 143, 154, 182, 286, 539, 637, 1001, 1078, 1274, 1447, 2002, 2894, 7007, 10129, 14014, 15917, 18811, 20258, 31834, 37622, 70903, 111419, 131677, 141806, 206921, 222838, 263354, 413842, 779933, 921739, 1448447, 1559866, 1843478, 2896894, 10139129, 20278258]

約数ペア:

[(1, 20278258), (2, 10139129), (7, 2896894), (11, 1843478), (13, 1559866), (14, 1448447), (22, 921739), (26, 779933), (49, 413842), (77, 263354), (91, 222838), (98, 206921), (143, 141806), (154, 131677), (182, 111419), (286, 70903), (539, 37622), (637, 31834), (1001, 20258), (1078, 18811), (1274, 15917), (1447, 14014), (2002, 10129), (2894, 7007)]