20990522308

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{111773}}^1$

素因数の和:112156

約数の個数: 48

約数和(自身を含む): 44316155520

約数和(自身を除く): 23325633212

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 353, 532, 706, 1412, 2471, 4942, 6707, 9884, 13414, 26828, 46949, 93898, 111773, 187796, 223546, 447092, 782411, 1564822, 2123687, 3129644, 4247374, 8494748, 14865809, 29731618, 39455869, 59463236, 78911738, 157823476, 276191083, 552382166, 749661511, 1104764332, 1499323022, 2998646044, 5247630577, 10495261154, 20990522308]

約数ペア:

[(1, 20990522308), (2, 10495261154), (4, 5247630577), (7, 2998646044), (14, 1499323022), (19, 1104764332), (28, 749661511), (38, 552382166), (76, 276191083), (133, 157823476), (266, 78911738), (353, 59463236), (532, 39455869), (706, 29731618), (1412, 14865809), (2471, 8494748), (4942, 4247374), (6707, 3129644), (9884, 2123687), (13414, 1564822), (26828, 782411), (46949, 447092), (93898, 223546), (111773, 187796)]