2021122516

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{51449}}^1$

素因数の和:51544

約数の個数: 48

約数和(自身を含む): 4287225600

約数和(自身を除く): 2266103084

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 61, 92, 122, 161, 244, 322, 427, 644, 854, 1403, 1708, 2806, 5612, 9821, 19642, 39284, 51449, 102898, 205796, 360143, 720286, 1183327, 1440572, 2366654, 3138389, 4733308, 6276778, 8283289, 12553556, 16566578, 21968723, 33133156, 43937446, 72182947, 87874892, 144365894, 288731788, 505280629, 1010561258, 2021122516]

約数ペア:

[(1, 2021122516), (2, 1010561258), (4, 505280629), (7, 288731788), (14, 144365894), (23, 87874892), (28, 72182947), (46, 43937446), (61, 33133156), (92, 21968723), (122, 16566578), (161, 12553556), (244, 8283289), (322, 6276778), (427, 4733308), (644, 3138389), (854, 2366654), (1403, 1440572), (1708, 1183327), (2806, 720286), (5612, 360143), (9821, 205796), (19642, 102898), (39284, 51449)]