1961121987

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1\times {\mathrm{421}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 3126230016

約数和(自身を除く): 1165108029

約数列:

[1, 3, 9, 11, 33, 99, 211, 223, 421, 633, 669, 1263, 1899, 2007, 2321, 2453, 3789, 4631, 6963, 7359, 13893, 20889, 22077, 41679, 47053, 88831, 93883, 141159, 266493, 281649, 423477, 517583, 799479, 844947, 977141, 1032713, 1552749, 2931423, 3098139, 4658247, 8794269, 9294417, 19809313, 59427939, 178283817, 217902443, 653707329, 1961121987]

約数ペア:

[(1, 1961121987), (3, 653707329), (9, 217902443), (11, 178283817), (33, 59427939), (99, 19809313), (211, 9294417), (223, 8794269), (421, 4658247), (633, 3098139), (669, 2931423), (1263, 1552749), (1899, 1032713), (2007, 977141), (2321, 844947), (2453, 799479), (3789, 517583), (4631, 423477), (6963, 281649), (7359, 266493), (13893, 141159), (20889, 93883), (22077, 88831), (41679, 47053)]