221872212

素因数分解:

$2^2\times 3^2\times {\mathrm{257}}^1\times {\mathrm{23981}}^1$

素因数の和:24248

約数の個数: 36

約数和(自身を含む): 563049396

約数和(自身を除く): 341177184

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 257, 514, 771, 1028, 1542, 2313, 3084, 4626, 9252, 23981, 47962, 71943, 95924, 143886, 215829, 287772, 431658, 863316, 6163117, 12326234, 18489351, 24652468, 36978702, 55468053, 73957404, 110936106, 221872212]

約数ペア:

[(1, 221872212), (2, 110936106), (3, 73957404), (4, 55468053), (6, 36978702), (9, 24652468), (12, 18489351), (18, 12326234), (36, 6163117), (257, 863316), (514, 431658), (771, 287772), (1028, 215829), (1542, 143886), (2313, 95924), (3084, 71943), (4626, 47962), (9252, 23981)]