20421768

素因数分解:

$2^3\times 3^1\times {\mathrm{137}}^1\times {\mathrm{6211}}^1$

素因数の和:6357

約数の個数: 32

約数和(自身を含む): 51435360

約数和(自身を除く): 31013592

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 137, 274, 411, 548, 822, 1096, 1644, 3288, 6211, 12422, 18633, 24844, 37266, 49688, 74532, 149064, 850907, 1701814, 2552721, 3403628, 5105442, 6807256, 10210884, 20421768]

約数ペア:

[(1, 20421768), (2, 10210884), (3, 6807256), (4, 5105442), (6, 3403628), (8, 2552721), (12, 1701814), (24, 850907), (137, 149064), (274, 74532), (411, 49688), (548, 37266), (822, 24844), (1096, 18633), (1644, 12422), (3288, 6211)]