21445974

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1217}}^1$

素因数の和:1325

約数の個数: 48

約数和(自身を含む): 51302160

約数和(自身を除く): 29856186

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 89, 99, 178, 198, 267, 534, 801, 979, 1217, 1602, 1958, 2434, 2937, 3651, 5874, 7302, 8811, 10953, 13387, 17622, 21906, 26774, 40161, 80322, 108313, 120483, 216626, 240966, 324939, 649878, 974817, 1191443, 1949634, 2382886, 3574329, 7148658, 10722987, 21445974]

約数ペア:

[(1, 21445974), (2, 10722987), (3, 7148658), (6, 3574329), (9, 2382886), (11, 1949634), (18, 1191443), (22, 974817), (33, 649878), (66, 324939), (89, 240966), (99, 216626), (178, 120483), (198, 108313), (267, 80322), (534, 40161), (801, 26774), (979, 21906), (1217, 17622), (1602, 13387), (1958, 10953), (2434, 8811), (2937, 7302), (3651, 5874)]