20711418

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5419}}^1$

素因数の和:5451

約数の個数: 48

約数和(自身を含む): 51901920

約数和(自身を除く): 31190502

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 182, 273, 294, 546, 637, 1274, 1911, 3822, 5419, 10838, 16257, 32514, 37933, 70447, 75866, 113799, 140894, 211341, 227598, 265531, 422682, 493129, 531062, 796593, 986258, 1479387, 1593186, 2958774, 3451903, 6903806, 10355709, 20711418]

約数ペア:

[(1, 20711418), (2, 10355709), (3, 6903806), (6, 3451903), (7, 2958774), (13, 1593186), (14, 1479387), (21, 986258), (26, 796593), (39, 531062), (42, 493129), (49, 422682), (78, 265531), (91, 227598), (98, 211341), (147, 140894), (182, 113799), (273, 75866), (294, 70447), (546, 37933), (637, 32514), (1274, 16257), (1911, 10838), (3822, 5419)]