20911548

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1439}}^1$

素因数の和:1626

約数の個数: 48

約数和(自身を含む): 56125440

約数和(自身を除く): 35213892

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 173, 346, 519, 692, 1038, 1211, 1439, 2076, 2422, 2878, 3633, 4317, 4844, 5756, 7266, 8634, 10073, 14532, 17268, 20146, 30219, 40292, 60438, 120876, 248947, 497894, 746841, 995788, 1493682, 1742629, 2987364, 3485258, 5227887, 6970516, 10455774, 20911548]

約数ペア:

[(1, 20911548), (2, 10455774), (3, 6970516), (4, 5227887), (6, 3485258), (7, 2987364), (12, 1742629), (14, 1493682), (21, 995788), (28, 746841), (42, 497894), (84, 248947), (173, 120876), (346, 60438), (519, 40292), (692, 30219), (1038, 20146), (1211, 17268), (1439, 14532), (2076, 10073), (2422, 8634), (2878, 7266), (3633, 5756), (4317, 4844)]