21238162

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:223

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 17065838

約数列:

[1, 2, 11, 19, 22, 31, 38, 62, 121, 149, 209, 242, 298, 341, 418, 589, 682, 1178, 1639, 2299, 2831, 3278, 3751, 4598, 4619, 5662, 6479, 7502, 9238, 12958, 18029, 31141, 36058, 50809, 62282, 71269, 87761, 101618, 142538, 175522, 342551, 558899, 685102, 965371, 1117798, 1930742, 10619081, 21238162]

約数ペア:

[(1, 21238162), (2, 10619081), (11, 1930742), (19, 1117798), (22, 965371), (31, 685102), (38, 558899), (62, 342551), (121, 175522), (149, 142538), (209, 101618), (242, 87761), (298, 71269), (341, 62282), (418, 50809), (589, 36058), (682, 31141), (1178, 18029), (1639, 12958), (2299, 9238), (2831, 7502), (3278, 6479), (3751, 5662), (4598, 4619)]