20804953988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1843757}}^1$

素因数の和:1843812

約数の個数: 48

約数和(自身を含む): 46256200704

約数和(自身を除く): 25451246716

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 2821, 5642, 11284, 1843757, 3687514, 7375028, 12906299, 23968841, 25812598, 47937682, 51625196, 57156467, 95875364, 114312934, 167781887, 228625868, 335563774, 400095269, 671127548, 743034071, 800190538, 1486068142, 1600381076, 2972136284, 5201238497, 10402476994, 20804953988]

約数ペア:

[(1, 20804953988), (2, 10402476994), (4, 5201238497), (7, 2972136284), (13, 1600381076), (14, 1486068142), (26, 800190538), (28, 743034071), (31, 671127548), (52, 400095269), (62, 335563774), (91, 228625868), (124, 167781887), (182, 114312934), (217, 95875364), (364, 57156467), (403, 51625196), (434, 47937682), (806, 25812598), (868, 23968841), (1612, 12906299), (2821, 7375028), (5642, 3687514), (11284, 1843757)]